Skip to content

Best Selling Products

  • John Guest SI031012S Superseal Union Elbow - 5/16" x 3/8" REDUCING ELBOW Grey Acetal JOHN GUEST 10-Pack
    John Guest SI031012S Superseal Union Elbow - 5/16" x 3/8" REDUCING ELBOW Grey Acetal JOHN GUEST 1-PC
    Save up to 39% % Off
    $4.89 - $56.99
    ($4.89 each)
    $7.99 - $59.99
    $7.99 - $59.99
    $7.99
    $4.89 - $56.99
    $4.89

    John Guest SI031012S Superseal Union Elbow - 5/16" x 3/8"

    JOHN GUEST
    SI031012S

    John Guest SI031012S Superseal Union Elbow - 5/16" x 3/8" Features and Benefits: Compatible with stainless steel tubing for versatile application...

    View full details
    $4.89 - $56.99
    ($4.89 each)
    $7.99 - $59.99
    $7.99 - $59.99
    $7.99
    $4.89 - $56.99
    $4.89
    Save up to 39% % Off
  • John Guest PI211210S Reducing Elbow - 3/8" x 5/16" REDUCING ELBOW Grey Acetal JOHN GUEST 10-Pack
    John Guest PI211210S Reducing Elbow - 3/8" x 5/16" REDUCING ELBOW Grey Acetal JOHN GUEST 1-PC
    Save up to 46% % Off
    $4.29 - $38.99
    ($4.29 each)
    $7.99 - $40.99
    $7.99 - $40.99
    $7.99
    $4.29 - $38.99
    $4.29

    John Guest PI211210S Reducing Elbow - 3/8" x 5/16"

    JOHN GUEST
    PI211210S

    John Guest PI211210S Reducing Elbow - 3/8" x 5/16" Features: Push-fit technology provides reliable, leak-free connections Designed to connect t...

    View full details
    $4.29 - $38.99
    ($4.29 each)
    $7.99 - $40.99
    $7.99 - $40.99
    $7.99
    $4.29 - $38.99
    $4.29
    Save up to 46% % Off
  • John Guest PI0306S Union Elbow - 3/16" UNION ELBOW Grey Acetal JOHN GUEST 10 pack
    John Guest PI0306S Union Elbow - 3/16" UNION ELBOW Grey Acetal JOHN GUEST 1 pc
    Save up to 17% % Off
    $5.99 - $49.99
    ($5.99 each)
    $7.99 - $59.99
    $7.99 - $59.99
    $7.99
    $5.99 - $49.99
    $5.99

    John Guest PI0306S Union Elbow - 3/16"

    JOHN GUEST
    PI0306S

    John Guest PI0306S Union Elbow - 3/16" Features: Designed for connecting OD tubing, making installations quick and easy John Guest® Push-fit te...

    View full details
    $5.99 - $49.99
    ($5.99 each)
    $7.99 - $59.99
    $7.99 - $59.99
    $7.99
    $5.99 - $49.99
    $5.99
    Save up to 17% % Off
  • John Guest PM1208S Bulkhead Union - 5/16" x 5/16" BULKHEAD UNION Grey Acetal JOHN GUEST 10-PACK
    John Guest PM1208S Bulkhead Union - 5/16" x 5/16" BULKHEAD UNION Grey Acetal JOHN GUEST 1-PC
    Save up to 18% % Off
    $5.90 - $49.00
    ($5.90 each)
    $7.99 - $59.99
    $7.99 - $59.99
    $7.99
    $5.90 - $49.00
    $5.90

    John Guest PM1208S Bulkhead Union - 5/16" x 5/16"

    JOHN GUEST
    PM1208S

    John Guest PI1216S Bulkhead Union - 1/2 x 1/2 Features: Push-fit technology ensures quick, reliable, and leak-free connections Designed to conn...

    View full details
    $5.90 - $49.00
    ($5.90 each)
    $7.99 - $59.99
    $7.99 - $59.99
    $7.99
    $5.90 - $49.00
    $5.90
    Save up to 18% % Off
  • John Guest PI491616S Three Way Divider 1/2" x 1/2" THREE-WAY DIVIDER Grey Acetal John Guest 5-Pack
    John Guest PI491616S Three Way Divider 1/2" x 1/2" THREE-WAY DIVIDER Grey Acetal John Guest 1-Pack
    Save up to 29% % Off
    $11.99 - $54.25
    ($11.99 each)
    $16.99 - $49.99
    $16.99 - $49.99
    $16.99
    $11.99 - $54.25
    $11.99

    John Guest PI491616S Three Way Divider 1/2" x 1/2"

    John Guest
    PI491616S

    John Guest PI491616S Three Way Divider 1/2" x 1/2" Durable gray acetal copolymer construction Nitrile O-rings for secure, leak-resistant sealin...

    View full details
    $11.99 - $54.25
    ($11.99 each)
    $16.99 - $49.99
    $16.99 - $49.99
    $16.99
    $11.99 - $54.25
    $11.99
    Save up to 29% % Off
  • UV Dynamics Ballast Model #MF-LLG120 (400233) For Systems UVD800, UVD1000 UV-Dynamics 20 to 50GPM Ballast UVDynamics
    $222.99
    ($Inf each)
    $199.00 - $199.00
    $199.00
    $222.99 - $222.99
    $222.99

    UV Dynamics Ballast Model #MF-LLG120 (400233) For Systems UVD800, UVD1000

    UVDynamics
    400233

    UV Dynamics Ballast Model #MF-LLG120-400233 For UVD800, UVD1000 MF Series UV Power Sources – Key Features Compatible with all single-lamp UV Dyna...

    View full details
    $222.99
    ($Inf each)
    $199.00 - $199.00
    $199.00
    $222.99 - $222.99
    $222.99
  • John Guest PI201006S Reducing Union - 5/16" x 3/16" REDUCING UNION Grey Acetal JOHN GUEST 10-Pack
    John Guest PI201006S Reducing Union - 5/16" x 3/16" REDUCING UNION Grey Acetal JOHN GUEST 1-PC
    Save up to 30% % Off
    $4.48 - $34.80
    ($4.48 each)
    $6.99 - $49.99
    $6.99 - $49.99
    $6.99
    $4.48 - $34.80
    $4.48

    John Guest PI201006S Reducing Union - 5/16" x 3/16"

    JOHN GUEST
    PI201006S

    John Guest PI201006S Reducing Union - 5/16" x 3/16" Features & Benefits: Compatible with plastic or copper OD tubing – offers versatile insta...

    View full details
    $4.48 - $34.80
    ($4.48 each)
    $6.99 - $49.99
    $6.99 - $49.99
    $6.99
    $4.48 - $34.80
    $4.48
    Save up to 30% % Off
  • John Guest PM0404S Union Connector - 5/32" union connector JOHN GUEST 10-Pack
    John Guest PM0404S Union Connector - 5/32" union connector JOHN GUEST 1-PC
    Save up to 17% % Off
    $2.30 - $29.96
    ($2.30 each)
    $3.99 - $35.99
    $3.99 - $35.99
    $3.99
    $2.30 - $29.96
    $2.30

    John Guest PM0404S Union Connector - 5/32"

    JOHN GUEST
    PM0404S

    John Guest PM0404S Union Connector - 5/32" Features & Benefits: Compatible with plastic or copper OD size tubing Durable acetal body with a...

    View full details
    $2.30 - $29.96
    ($2.30 each)
    $3.99 - $35.99
    $3.99 - $35.99
    $3.99
    $2.30 - $29.96
    $2.30
    Save up to 17% % Off
  • John Guest 1" Push Fit End Cap Plug with Quick Connect Plumbing Fitting for Water Lines – PSEI4636 John Guest Copper Tube Size Cap John Guest 1 Pack
    38% Off % Off
    $9.98
    ($9.98 each)
    $15.99
    $15.99 - $15.99
    $15.99
    $9.98 - $9.98
    $9.98

    John Guest 1" Push Fit End Cap Plug with Quick Connect Plumbing Fitting for Water Lines – PSEI4636

    John Guest
    PSEI4636

    John Guest PSEI4636 1" Push Fit End Cap Plug.This high-quality push-to-connect fitting provides a fast, secure, and leak-free way to cap 1" tubing ...

    View full details
    $9.98
    ($9.98 each)
    $15.99
    $15.99 - $15.99
    $15.99
    $9.98 - $9.98
    $9.98
    38% Off % Off
  • John Guest 3/4" Push Fit End Cap Plug with Quick Connect Plumbing Fitting for Water Lines – PSEI4628 John Guest Copper Tube Size Cap John Guest 5 Pack
    John Guest 3/4" Push Fit End Cap Plug with Quick Connect Plumbing Fitting for Water Lines – PSEI4628 John Guest Copper Tube Size Cap John Guest 1 Pack
    Save up to 33% % Off
    $7.99 - $59.99
    ($7.99 each)
    $15.99 - $89.99
    $15.99 - $89.99
    $15.99
    $7.99 - $59.99
    $7.99

    John Guest 3/4" Push Fit End Cap Plug with Quick Connect Plumbing Fitting for Water Lines – PSEI4628

    John Guest
    PSEI4628

    John Guest PSEI4628 3/4" Push Fit End Cap Plug.This high-quality push-to-connect fitting provides a fast, secure, and leak-free way to cap 3/4" tub...

    View full details
    $7.99 - $59.99
    ($7.99 each)
    $15.99 - $89.99
    $15.99 - $89.99
    $15.99
    $7.99 - $59.99
    $7.99
    Save up to 33% % Off
  • John Guest PI0406S Union Connector - 3/16" UNION CONNECTOR Grey Acetal JOHN GUEST 10-Pack
    John Guest PI0406S Union Connector - 3/16" UNION CONNECTOR Grey Acetal JOHN GUEST 1-PC
    Save up to 17% % Off
    $5.99 - $49.99
    ($5.99 each)
    $7.99 - $59.99
    $7.99 - $59.99
    $7.99
    $5.99 - $49.99
    $5.99

    John Guest PI0406S Union Connector - 3/16"

    JOHN GUEST
    PI0406S

    John Guest PI0406S Union Connector - 3/16" Features: Push-fit technology ensures reliable, leak-free connections Designed to connect OD (outsid...

    View full details
    $5.99 - $49.99
    ($5.99 each)
    $7.99 - $59.99
    $7.99 - $59.99
    $7.99
    $5.99 - $49.99
    $5.99
    Save up to 17% % Off
  • John Guest PM0208S Union Tee - 5/16" UNION TEE Grey Acetal JOHN GUEST 10-Pack
    John Guest PM0208S Union Tee - 5/16" UNION TEE Grey Acetal JOHN GUEST 1-PC
    Save up to 28% % Off
    $4.00 - $35.99
    ($4.00 each)
    $6.99 - $49.99
    $6.99 - $49.99
    $6.99
    $4.00 - $35.99
    $4.00

    John Guest PM0208S Union Tee - 5/16"

    JOHN GUEST
    PM0208S

    John Guest PM0208S Union Tee - 5/16" Features & Benefits Compatible with plastic or copper OD tubing Durable acetal body with food-grade ni...

    View full details
    $4.00 - $35.99
    ($4.00 each)
    $6.99 - $49.99
    $6.99 - $49.99
    $6.99
    $4.00 - $35.99
    $4.00
    Save up to 28% % Off
  • John Guest PM0204S Union Tee - 5/32" UNION TEE Grey Acetal JOHN GUEST 10-Pack
    John Guest PM0204S Union Tee - 5/32" UNION TEE Grey Acetal JOHN GUEST 1-PC
    Save up to 17% % Off
    $5.99 - $49.99
    ($5.99 each)
    $7.99 - $59.99
    $7.99 - $59.99
    $7.99
    $5.99 - $49.99
    $5.99

    John Guest PM0204S Union Tee - 5/32"

    JOHN GUEST
    PM0204S

    John Guest PI0216S Union Tee - 1/2 Features & Benefits Compatible with plastic or copper OD tubing Durable acetal body with food-grade nitr...

    View full details
    $5.99 - $49.99
    ($5.99 each)
    $7.99 - $59.99
    $7.99 - $59.99
    $7.99
    $5.99 - $49.99
    $5.99
    Save up to 17% % Off
  • John Guest PEI203628E ProLock 1" CTS Push-to-Connect to 3/4" Union Coupler – for Copper Tube, Plumbing & Water Softeners, Black John Guest Copper Tube Size Union John Guest
    John Guest PEI203628E ProLock 1" CTS Push-to-Connect to 3/4" Union Coupler – for Copper Tube, Plumbing & Water Softeners, Black John Guest Copper Tube Size Union John Guest 1 Pack
    24% Off % Off
    $18.99
    ($18.99 each)
    $24.99
    $24.99 - $24.99
    $24.99
    $18.99 - $18.99
    $18.99

    John Guest PEI203628E ProLock 1" CTS Push-to-Connect to 3/4" Union Coupler – for Copper Tube, Plumbing & Water Softeners, Black

    John Guest
    PEI203628E

    John Guest PEI203628E   1" CTS Push-to-Connect to 3/4" Union – for Copper Tube, Plumbing & Water Softeners, Black PART# PEI203628E  Make plumbi...

    View full details
    $18.99
    ($18.99 each)
    $24.99
    $24.99 - $24.99
    $24.99
    $18.99 - $18.99
    $18.99
    24% Off % Off
  • John Guest PI0206S Union Tee - 3/16" UNION TEE Grey Acetal JOHN GUEST 10-Pack
    John Guest PI0206S Union Tee - 3/16" UNION TEE Grey Acetal JOHN GUEST 1-PC
    Save up to 8% % Off
    $5.99 - $45.99
    ($5.99 each)
    $6.99 - $49.99
    $6.99 - $49.99
    $6.99
    $5.99 - $45.99
    $5.99

    John Guest PI0206S Union Tee - 3/16"

    JOHN GUEST
    PI0206S

    John Guest PI0206S Union Tee - 3/16" Features Push-fit technology provides quick, reliable, and leak-free connections Designed for use with OD-...

    View full details
    $5.99 - $45.99
    ($5.99 each)
    $6.99 - $49.99
    $6.99 - $49.99
    $6.99
    $5.99 - $45.99
    $5.99
    Save up to 8% % Off
  • John Guest PI0112F6S Male Flare Connector - 3/8" x 3/8" MFL MALE Grey Acetal JOHN GUEST 10-Pack
    John Guest PI0112F6S Male Flare Connector - 3/8" x 3/8" MFL MALE Grey Acetal JOHN GUEST 1-PC
    Save up to 7% % Off
    $3.10 - $27.80
    ($3.10 each)
    $4.99 - $29.99
    $4.99 - $29.99
    $4.99
    $3.10 - $27.80
    $3.10

    John Guest PI0112F6S Male Flare Connector - 3/8" x 3/8" MFL

    JOHN GUEST
    PI0112F6S

    John Guest PI0112F6S Male Flare Connector  -  3/8" x 3/8" MFL Features & Benefits: Compatible with plastic or copper OD-size tubing Durable...

    View full details
    $3.10 - $27.80
    ($3.10 each)
    $4.99 - $29.99
    $4.99 - $29.99
    $4.99
    $3.10 - $27.80
    $3.10
    Save up to 7% % Off
  • John Guest PM010821S Male Connector - 5/16" x 1/8" NPTF MALE Grey Acetal JOHN GUEST 10-Pack
    John Guest PM010821S Male Connector - 5/16" x 1/8" NPTF MALE Grey Acetal JOHN GUEST 1-PC
    Save up to 8% % Off
    $4.30 - $46.69
    ($4.30 each)
    $5.99 - $50.99
    $5.99 - $50.99
    $5.99
    $4.30 - $46.69
    $4.30

    John Guest PM010821S Male Connector - 5/16" x 1/8" NPTF

    JOHN GUEST
    PM010821S

    John Guest PM010821S Male Connector  -  5/16" x 1/8" NPTF Designed for quick and easy connection of OD tubing to female NPT threads. Made from gray...

    View full details
    $4.30 - $46.69
    ($4.30 each)
    $5.99 - $50.99
    $5.99 - $50.99
    $5.99
    $4.30 - $46.69
    $4.30
    Save up to 8% % Off
  • John Guest PM010401S Male Connector - 5/32" x 1/8" BSPT MALE Grey Acetal JOHN GUEST 10-Pack
    John Guest PM010401S Male Connector - 5/32" x 1/8" BSPT MALE Grey Acetal JOHN GUEST 1-PC
    Save up to 27% % Off
    $3.45 - $36.33
    ($3.45 each)
    $4.99 - $49.99
    $4.99 - $49.99
    $4.99
    $3.45 - $36.33
    $3.45

    John Guest PM010401S Male Connector - 5/32" x 1/8" BSPT

    JOHN GUEST
    PM010401S

    John Guest PM010401S Male Connector  -  5/32" x 1/8" BSPT Features & Benefits Plastic push-fit adaptor designed for quick conversion to imper...

    View full details
    $3.45 - $36.33
    ($3.45 each)
    $4.99 - $49.99
    $4.99 - $49.99
    $4.99
    $3.45 - $36.33
    $3.45
    Save up to 27% % Off
  • John Guest NCPI011211S Male Connector - 3/8" x 1/8" BSP MALE Grey Acetal JOHN GUEST 10-Pack
    John Guest NCPI011211S Male Connector - 3/8" x 1/8" BSP MALE Grey Acetal JOHN GUEST 1-PC
    Save up to 20% % Off
    $4.99 - $39.99
    ($4.99 each)
    $6.99 - $49.99
    $6.99 - $49.99
    $6.99
    $4.99 - $39.99
    $4.99

    John Guest NCPI011211S Male Connector - 3/8" x 1/8" BSP

    JOHN GUEST
    NCPI011211S

    John Guest NCPI011211S Male Connector  -  3/8" x 1/8" BSP The John Guest male connector allows for quick and easy connection of OD tubing to female...

    View full details
    $4.99 - $39.99
    ($4.99 each)
    $6.99 - $49.99
    $6.99 - $49.99
    $6.99
    $4.99 - $39.99
    $4.99
    Save up to 20% % Off
  • John Guest PM010801S Male Connector - 5/16" x 1/8" BSPT MALE Grey Acetal JOHN GUEST
    John Guest PM010801S Male Connector - 5/16" x 1/8" BSPT MALE Grey Acetal JOHN GUEST
    Save up to 25% % Off
    $4.99 - $29.99
    ($4.99 each)
    $6.99 - $39.99
    $6.99 - $39.99
    $6.99
    $4.99 - $29.99
    $4.99

    John Guest PM010801S Male Connector - 5/16" x 1/8" BSPT

    JOHN GUEST
    PM010801S

    John Guest PM010801S Male Connector  -  5/16" x 1/8" BSPT Features and Benefits: Compatible with plastic or copper OD-sized tubing Durable acet...

    View full details
    $4.99 - $29.99
    ($4.99 each)
    $6.99 - $39.99
    $6.99 - $39.99
    $6.99
    $4.99 - $29.99
    $4.99
    Save up to 25% % Off
  • John Guest PEI0436E ProLock 1" CTS Push-to-Connect to 1 " Union Coupler – for Copper Tube, Plumbing & Water Softeners, Black John Guest Copper Tube Size Union John Guest
    John Guest PEI0436E ProLock 1" CTS Push-to-Connect to 1 " Union Coupler – for Copper Tube, Plumbing & Water Softeners, Black John Guest Copper Tube Size Union John Guest 1 Pack
    Save up to 32% % Off
    $15.99 - $74.95
    ($15.99 each)
    $24.99 - $109.99
    $24.99 - $109.99
    $24.99
    $15.99 - $74.95
    $15.99

    John Guest PEI0436E ProLock 1" CTS Push-to-Connect to 1 " Union Coupler – for Copper Tube, Plumbing & Water Softeners, Black

    John Guest
    PEI0436E

    John Guest PEI0436E  1" CTS Push-to-Connect to 1 " Union – for Copper Tube, Plumbing & Water Softeners, Black PART# PEI0436E Make plumbing conn...

    View full details
    $15.99 - $74.95
    ($15.99 each)
    $24.99 - $109.99
    $24.99 - $109.99
    $24.99
    $15.99 - $74.95
    $15.99
    Save up to 32% % Off
  • John Guest PSEI012826E ProLock 3/4" CTS Push-to-Connect to 3/4" Npt Male connector – for Copper Tube, Plumbing & Water Softeners, Black (Copy) John Guest Copper Tube Size Male Connector John Guest 5 Pack
    John Guest PSEI012826E ProLock 3/4" CTS Push-to-Connect to 3/4" Npt Male connector – for Copper Tube, Plumbing & Water Softeners, Black (Copy) John Guest Copper Tube Size Male Connector John Guest 1 Pack
    Save up to 33% % Off
    $9.98 - $59.99
    ($9.98 each)
    $19.99 - $89.99
    $19.99 - $89.99
    $19.99
    $9.98 - $59.99
    $9.98

    John Guest PSEI012826E ProLock 3/4" CTS Push-to-Connect to 3/4" Npt Male connector – for Copper Tube, Plumbing & Water Softeners, Black (Copy)

    John Guest
    PSEI012826E

    John Guest PSEI012826E ProLock 3/4" CTS Push-to-Connect to 3/4" Npt Male connector – for Copper Tube, Plumbing & Water Softeners, Black PART# P...

    View full details
    $9.98 - $59.99
    ($9.98 each)
    $19.99 - $89.99
    $19.99 - $89.99
    $19.99
    $9.98 - $59.99
    $9.98
    Save up to 33% % Off
  • John Guest PI011202S Male Connector - 3/8" x 1/4" BSPT MALE Grey Acetal JOHN GUEST 10-Pack
    John Guest PI011202S Male Connector - 3/8" x 1/4" BSPT MALE Grey Acetal JOHN GUEST 1-PC
    Save up to 9% % Off
    $3.50 - $34.50
    ($3.50 each)
    $4.99 - $37.99
    $4.99 - $37.99
    $4.99
    $3.50 - $34.50
    $3.50

    John Guest PI011202S Male Connector - 3/8" x 1/4" BSPT

    JOHN GUEST
    PI011202S

    John Guest PI011202S Male Connector  -  3/8" x 1/4" BSPT Features: Push-Fit Technology provides quick, reliable, and leak-free connections Conn...

    View full details
    $3.50 - $34.50
    ($3.50 each)
    $4.99 - $37.99
    $4.99 - $37.99
    $4.99
    $3.50 - $34.50
    $3.50
    Save up to 9% % Off
  • John Guest PSEI013626E ProLock 1" CTS Push-to-Connect to 3/4" Npt Male connector – for Copper Tube, Plumbing & Water Softeners, Black John Guest Copper Tube Size Male Connector John Guest 2 Pack
    John Guest PSEI013626E ProLock 1" CTS Push-to-Connect to 3/4" Npt Male connector – for Copper Tube, Plumbing & Water Softeners, Black John Guest Copper Tube Size Male Connector John Guest 1 Pack
    Save up to 36% % Off
    $17.99 - $31.98
    ($17.99 each)
    $28.99 - $49.99
    $28.99 - $49.99
    $28.99
    $17.99 - $31.98
    $17.99

    John Guest PSEI013626E ProLock 1" CTS Push-to-Connect to 3/4" Npt Male connector – for Copper Tube, Plumbing & Water Softeners, Black

    John Guest
    PSEI013626E

    John Guest PSEI013626E  ProLock 1" CTS Push-to-Connect to 3/4" Npt Male connector – for Copper Tube, Plumbing & Water Softeners, Black PART# PS...

    View full details
    $17.99 - $31.98
    ($17.99 each)
    $28.99 - $49.99
    $28.99 - $49.99
    $28.99
    $17.99 - $31.98
    $17.99
    Save up to 36% % Off