Skip to content

John Guest Grey PI & PM Acetal Fittings

  • John Guest PI0212S Union Tee - 3/8 UNION TEE Grey Acetal JOHN GUEST 10 pack
    John Guest PI0212S Union Tee - 3/8 UNION TEE Grey Acetal JOHN GUEST 1 pc
    Save up to 7% % Off
    $4.59 - $41.75
    ($4.59 each)
    $5.99 - $44.99
    $5.99 - $44.99
    $5.99
    $4.59 - $41.75
    $4.59

    John Guest PI0212S Union Tee - 3/8

    JOHN GUEST
    PI0212S

    John Guest PI0212S Union Tee - 3/8 Features Push-fit technology ensures reliable, leak-free connections Designed for connecting OD-sized tubing...

    View full details
    $4.59 - $41.75
    ($4.59 each)
    $5.99 - $44.99
    $5.99 - $44.99
    $5.99
    $4.59 - $41.75
    $4.59
    Save up to 7% % Off
  • John Guest PI011222S Male Connector - 3/8 QC x 1/4 NPT MALE Grey Acetal JOHN GUEST 10-Pack
    John Guest PI011222S Male Connector - 3/8 QC x 1/4 NPT male connectors JOHN GUEST
    Save up to 7% % Off
    $2.49 - $22.33
    ($2.49 each)
    $2.99 - $23.99
    $2.99 - $23.99
    $2.99
    $2.49 - $22.33
    $2.49

    John Guest PI011222S Male Connector - 3/8 QC x 1/4 NPT

    JOHN GUEST
    PI011222S

    John Guest PI011222S Male Connector  -  3/8 QC x 1/4 NPT Features: Push-Fit Technology provides quick, reliable, and leak-free connections Conn...

    View full details
    $2.49 - $22.33
    ($2.49 each)
    $2.99 - $23.99
    $2.99 - $23.99
    $2.99
    $2.49 - $22.33
    $2.49
    Save up to 7% % Off
  • John Guest Speedfit SI421212S 3/8 inch Superseal- 3/8 inch Flow Bend UNION ELBOW Grey Acetal JOHN GUEST 10 pack
    John Guest Speedfit SI421212S 3/8 inch Superseal- 3/8 inch Flow Bend UNION ELBOW Grey Acetal JOHN GUEST
    Save up to 29% % Off
    $11.99 - $98.99
    ($11.99 each)
    $16.99 - $51.30
    $16.99 - $51.30
    $16.99
    $11.99 - $98.99
    $11.99

    John Guest Speedfit SI421212S 3/8 inch Superseal- 3/8 inch Flow Bend

    JOHN GUEST
    SI421212S

    Product Name: John Guest SI421212S – Superseal to Speedfit Flow Bend Elbow, 3/8" × 3/8" Description:A 90° flow bend connector designed to join 3/8"...

    View full details
    $11.99 - $98.99
    ($11.99 each)
    $16.99 - $51.30
    $16.99 - $51.30
    $16.99
    $11.99 - $98.99
    $11.99
    Save up to 29% % Off
  • John Guest PI290808S Stem Elbow Barb Connector - 1/4" OD Stem x 1/4" ID Barb STEM TO HOSE BARB ELBOW Gray Acetal JOHN GUEST 10 pack
    John Guest PI290808S Stem Elbow Barb Connector - 1/4" OD Stem x 1/4" ID Barb STEM TO HOSE BARB ELBOW Gray Acetal JOHN GUEST 1 Pack
    Save up to 14% % Off
    $2.00 - $18.01
    ($2.00 each)
    $3.99 - $20.99
    $3.99 - $20.99
    $3.99
    $2.00 - $18.01
    $2.00

    John Guest PI290808S Stem Elbow Barb Connector - 1/4" OD Stem x 1/4" ID Barb

    JOHN GUEST
    PI290808S

    Features: Push-fit Technology creates reliable, leak-free connections.Used to connect hose to Push-fit fittingsCompatible with plastic or copper OD...

    View full details
    $2.00 - $18.01
    ($2.00 each)
    $3.99 - $20.99
    $3.99 - $20.99
    $3.99
    $2.00 - $18.01
    $2.00
    Save up to 14% % Off
  • John Guest PI291210S Stem Elbow Barb Connector - 3/8" OD Stem x 5/16" ID Barb STEM TO HOSE BARB ELBOW Gray Acetal JOHN GUEST 10 pack
    John Guest PI291210S Stem Elbow Barb Connector - 3/8" OD Stem x 5/16" ID Barb STEM TO HOSE BARB ELBOW Gray Acetal JOHN GUEST 1 Pack
    Save up to 30% % Off
    $4.42 - $42.99
    ($4.42 each)
    $6.33 - $21.99
    $6.33 - $21.99
    $6.33
    $4.42 - $42.99
    $4.42

    John Guest PI291210S Stem Elbow Barb Connector - 3/8" OD Stem x 5/16" ID Barb

    JOHN GUEST
    PI291210S

    Features: Push-fit Technology creates reliable, leak-free connections Used to connect hose to Push-fit fittings Compatible with plastic or copper ...

    View full details
    $4.42 - $42.99
    ($4.42 each)
    $6.33 - $21.99
    $6.33 - $21.99
    $6.33
    $4.42 - $42.99
    $4.42
    Save up to 30% % Off
  • John Guest PI4612S End Stop - 3/8 END STOP CAP Grey Acetal JOHN GUEST 10 Pack
    John Guest PI4612S End Stop - 3/8 end stop JOHN GUEST
    Save up to 23% % Off
    $2.00 - $16.99
    ($2.00 each)
    $2.99 - $21.99
    $2.99 - $21.99
    $2.99
    $2.00 - $16.99
    $2.00

    John Guest PI4612S End Stop - 3/8

    JOHN GUEST
    PI4612S

    John Guest PI4612S End Stop - 3/8 Features: Designed to cap OD-sized tubing securely and easily Compatible with both plastic and copper OD tubi...

    View full details
    $2.00 - $16.99
    ($2.00 each)
    $2.99 - $21.99
    $2.99 - $21.99
    $2.99
    $2.00 - $16.99
    $2.00
    Save up to 23% % Off
  • John Guest PI0808S Plug - 1/4" PLUG Grey Acetal JOHN GUEST 10-Pack
    John Guest PI0808S Plug - 1/4" PLUG Grey Acetal JOHN GUEST 1-PC
    Save up to 29% % Off
    $0.55 - $5.19
    ($0.55 each)
    $0.89 - $7.29
    $0.89 - $7.29
    $0.89
    $0.55 - $5.19
    $0.55

    John Guest PI0808S Plug - 1/4"

    JOHN GUEST
    PI0808S

    John Guest PI0808S Plug - 1/4" Features: Designed to plug the push-fit port of a fitting securely Compatible with both plastic and copper OD-si...

    View full details
    $0.55 - $5.19
    ($0.55 each)
    $0.89 - $7.29
    $0.89 - $7.29
    $0.89
    $0.55 - $5.19
    $0.55
    Save up to 29% % Off
  • John Guest PI291208S Stem Elbow Barb Connector - 3/8 OD Stem x 1/4 ID Barb STEM TO HOSE BARB ELBOW Gray Acetal JOHN GUEST 10 pack
    John Guest PI290808S Stem Elbow Barb Connector - 1/4 OD Stem x 1/4 ID Barb stem hose barb elbow JOHN GUEST
    Save up to 28% % Off
    $1.69 - $15.86
    ($1.69 each)
    $2.98 - $21.99
    $2.98 - $21.99
    $2.98
    $1.69 - $15.86
    $1.69

    John Guest PI291208S Stem Elbow Barb Connector - 3/8 OD Stem x 1/4 ID Barb

    JOHN GUEST
    PI290808S

    John Guest PI291208S Stem Elbow Barb Connector - 3/8 OD Stem x 1/4 ID Barb Features: Push-fit Technology creates reliable, leak-free connections.Us...

    View full details
    $1.69 - $15.86
    ($1.69 each)
    $2.98 - $21.99
    $2.98 - $21.99
    $2.98
    $1.69 - $15.86
    $1.69
    Save up to 28% % Off
  • John Guest PI251616S Stem Barb Connector - 1/2" OD Stem x 1/2" ID Barb STEM TO HOUSE BARB Grey Acetal JOHN GUEST 10 Pack
    John Guest PI251616S Stem Barb Connector - 1/2" OD Stem x 1/2" ID Barb STEM TO HOUSE BARB Grey Acetal JOHN GUEST 1 Pack
    Save up to 13% % Off
    $2.74 - $25.99
    ($2.74 each)
    $3.98 - $29.99
    $3.98 - $29.99
    $3.98
    $2.74 - $25.99
    $2.74

    John Guest PI251616S Stem Barb Connector - 1/2" OD Stem x 1/2" ID Barb

    JOHN GUEST
    PI251616S

    John Guest PI251616S TUBE TO HOSE STEM 1/2" STEM OD 1/2" HOSE ID Features: Push-fit technology ensures reliable, leak-free connections Stem des...

    View full details
    $2.74 - $25.99
    ($2.74 each)
    $3.98 - $29.99
    $3.98 - $29.99
    $3.98
    $2.74 - $25.99
    $2.74
    Save up to 13% % Off
  • John Guest PI251216S Stem Barb Connector - 3/8 OD Stem x 1/2 ID Barb STEM TO HOUSE BARB Grey Acetal JOHN GUEST 10 Pack
    John Guest PI251216S Stem Barb Connector - 3/8 OD Stem x 1/2 ID Barb STEM TO HOUSE BARB Grey Acetal JOHN GUEST 1 Pack
    Save up to 14% % Off
    $2.64 - $24.99
    ($2.64 each)
    $3.98 - $28.99
    $3.98 - $28.99
    $3.98
    $2.64 - $24.99
    $2.64

    John Guest PI251216S Stem Barb Connector - 3/8 OD Stem x 1/2 ID Barb

    JOHN GUEST
    PI251216S

    John Guest PI251216S TUBE TO HOSE-  STEM 3/8" STEM OD 1/2" HOSE BARB ID Features: Push-fit technology ensures reliable, leak-free connections S...

    View full details
    $2.64 - $24.99
    ($2.64 each)
    $3.98 - $28.99
    $3.98 - $28.99
    $3.98
    $2.64 - $24.99
    $2.64
    Save up to 14% % Off
  • John Guest PI4512F6S Gray Acetal Flare Female Connector 3/8 x 3/8 FFL faucet connector JOHN GUEST
    Save up to 31% % Off
    $3.38 - $31.79
    ($3.38 each)
    $4.89 - $31.79
    $4.89 - $31.79
    $4.89
    $3.38 - $31.79
    $3.38

    John Guest PI4512F6S Female Adapter Flare - 3/8" x 3/8" Flare

    JOHN GUEST
    PI4512F6S

    John Guest PI4512F6S Female Adapter Flare - 3/8 x 3/8 Flare Features: Push-fit technology ensures secure, reliable, and leak-free connections C...

    View full details
    $3.38 - $31.79
    ($3.38 each)
    $4.89 - $31.79
    $4.89 - $31.79
    $4.89
    $3.38 - $31.79
    $3.38
    Save up to 31% % Off
  • John Guest PI1216S Bulkhead Union - 1/2 x 1/2 BULKHEAD UNION Grey Acetal JOHN GUEST 10-Pack
    John Guest PI1216S Bulkhead Union - 1/2 x 1/2 BULKHEAD UNION Grey Acetal JOHN GUEST 1-PC
    Save up to 20% % Off
    $8.99 - $78.99
    ($8.99 each)
    $11.98 - $98.99
    $11.98 - $98.99
    $11.98
    $8.99 - $78.99
    $8.99

    John Guest PI1216S Bulkhead Union - 1/2 x 1/2

    JOHN GUEST
    PI1216S

    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
    $8.99 - $78.99
    ($8.99 each)
    $11.98 - $98.99
    $11.98 - $98.99
    $11.98
    $8.99 - $78.99
    $8.99
    Save up to 20% % Off
  • John Guest PI1212S Bulkhead Union - 3/8 x 3/8 BULKHEAD UNION Grey Acetal JOHN GUEST 10-Pack
    John Guest PI1212S Bulkhead Union - 3/8 x 3/8 BULKHEAD UNION Grey Acetal JOHN GUEST 1-PC
    Save up to 18% % Off
    $6.30 - $49.30
    ($6.30 each)
    $8.99 - $59.99
    $8.99 - $59.99
    $8.99
    $6.30 - $49.30
    $6.30

    John Guest PI1212S Bulkhead Union - 3/8 x 3/8

    JOHN GUEST
    PI1212S

    John Guest PI1212S Bulkhead Union - 3/8 x 3/8 Features: Constructed from gray acetal copolymer for strength and durability Equipped with Nitril...

    View full details
    $6.30 - $49.30
    ($6.30 each)
    $8.99 - $59.99
    $8.99 - $59.99
    $8.99
    $6.30 - $49.30
    $6.30
    Save up to 18% % Off
  • John Guest PI051624S Stem Adapter NPTF - 1/2 x 1/2 NPTF STEM ADAPTER Grey Acetal JOHN GUEST 10-Pack
    John Guest PI051624S Stem Adapter NPTF - 1/2 x 1/2 NPTF STEM ADAPTER Grey Acetal JOHN GUEST 1-PC
    Save up to 14% % Off
    $2.00 - $18.00
    ($2.00 each)
    $3.99 - $20.99
    $3.99 - $20.99
    $3.99
    $2.00 - $18.00
    $2.00

    John Guest PI051624S Stem Adapter NPTF - 1/2 x 1/2 NPTF

    JOHN GUEST
    PI051624S

    John Guest PI051624S Stem Adapter NPTF - 1/2 x 1/2 NPTF Features: Push-fit technology ensures secure, reliable, and leak-free connections Easy ...

    View full details
    $2.00 - $18.00
    ($2.00 each)
    $3.99 - $20.99
    $3.99 - $20.99
    $3.99
    $2.00 - $18.00
    $2.00
    Save up to 14% % Off
  • John Guest PI051223S Stem Adapter NPTF - 3/8 x 3/8 NPTF STEM ADAPTER Grey Acetal JOHN GUEST 10-Pack
    John Guest PI051223S Stem Adapter NPTF - 3/8 x 3/8 NPTF stem adapter JOHN GUEST
    Save up to 20% % Off
    $1.25 - $11.20
    ($1.25 each)
    $2.99 - $13.99
    $2.99 - $13.99
    $2.99
    $1.25 - $11.20
    $1.25

    John Guest PI051223S Stem Adapter NPTF - 3/8 x 3/8 NPTF

    JOHN GUEST
    PI051223S

    John Guest PI051223S Stem Adapter NPTF - 3/8 x 3/8 NPTF Features: Advanced push-fit technology provides secure, reliable, and leak-free co...

    View full details
    $1.25 - $11.20
    ($1.25 each)
    $2.99 - $13.99
    $2.99 - $13.99
    $2.99
    $1.25 - $11.20
    $1.25
    Save up to 20% % Off
  • John Guest PI0408S Union Connector - 1/4 UNION CONNECTOR Grey Acetal JOHN GUEST 10-Pack
    John Guest PI0408S Union Connector - 1/4 UNION CONNECTOR Grey Acetal JOHN GUEST 1-PC
    Save up to 12% % Off
    $2.60 - $22.85
    ($2.60 each)
    $3.99 - $25.99
    $3.99 - $25.99
    $3.99
    $2.60 - $22.85
    $2.60

    John Guest PI0408S Union Connector - 1/4

    JOHN GUEST
    PI0408S

    John Guest PI0408S Union Connector - 1/4 Push-fit technology ensures reliable, leak-free connections Designed to connect OD (outside diameter) ...

    View full details
    $2.60 - $22.85
    ($2.60 each)
    $3.99 - $25.99
    $3.99 - $25.99
    $3.99
    $2.60 - $22.85
    $2.60
    Save up to 12% % Off
  • John Guest PI0312S Union Elbow - 3/8 UNION ELBOW Grey Acetal JOHN GUEST 10-Pack
    John Guest PI0312S Union Elbow - 3/8 UNION ELBOW Grey Acetal JOHN GUEST 1-PC
    Save up to 20% % Off
    $4.98 - $39.99
    ($4.98 each)
    $6.99 - $49.99
    $6.99 - $49.99
    $6.99
    $4.98 - $39.99
    $4.98

    John Guest PI0312S Union Elbow - 3/8

    JOHN GUEST
    PI0312S

    John Guest PI0312S Union Elbow - 3/8 Features: Push-fit technology ensures fast, reliable, and leak-free connections Designed to connect OD tub...

    View full details
    $4.98 - $39.99
    ($4.98 each)
    $6.99 - $49.99
    $6.99 - $49.99
    $6.99
    $4.98 - $39.99
    $4.98
    Save up to 20% % Off
  • John Guest PI011224S Male Connector - 3/8 x 1/2 NPTF MALE Grey Acetal JOHN GUEST 10-Pack
    John Guest PI011224S Male Connector - 3/8 x 1/2 NPTF male connectors JOHN GUEST
    Save up to 23% % Off
    $5.10 - $46.00
    ($5.10 each)
    $6.99 - $59.99
    $6.99 - $59.99
    $6.99
    $5.10 - $46.00
    $5.10

    John Guest PI011224S Male Connector - 3/8 x 1/2 NPTF

    JOHN GUEST
    PI011224S

    John Guest PI011224S Male Connector - 3/8 x 1/2 NPTF Features push-fit technology for secure, leak-free connections Connects OD tubing to femal...

    View full details
    $5.10 - $46.00
    ($5.10 each)
    $6.99 - $59.99
    $6.99 - $59.99
    $6.99
    $5.10 - $46.00
    $5.10
    Save up to 23% % Off
  • John Guest PI010822S Male Connector NPTF - 1/4 x 1/4 NPTF MALE Grey Acetal JOHN GUEST 10 Pack
    John Guest PI010822S Male Connector NPTF - 1/4 x 1/4 NPTF male connectors JOHN GUEST
    Save up to 16% % Off
    $1.75 - $16.75
    ($1.75 each)
    $1.99 - $19.99
    $1.99 - $19.99
    $1.99
    $1.75 - $16.75
    $1.75

    John Guest PI010822S Male Connector NPTF - 1/4 x 1/4 NPTF

    JOHN GUEST
    PI010822S

    John Guest PI010822S Male Connector NPTF -  1/4 x 1/4 NPTF Features: Push-fit technology provides secure, leak-free connections Connects OD tub...

    View full details
    $1.75 - $16.75
    ($1.75 each)
    $1.99 - $19.99
    $1.99 - $19.99
    $1.99
    $1.75 - $16.75
    $1.75
    Save up to 16% % Off
  • John Guest PM050812S Stem Adapter - 5/16" x 1/4" BSP STEM ADAPTER Grey Acetal JOHN GUEST 10-Pack
    John Guest PM050812S Stem Adapter - 5/16" x 1/4" BSP STEM ADAPTER Grey Acetal JOHN GUEST 1-PC
    Save up to 13% % Off
    $4.99 - $39.99
    ($4.99 each)
    $8.99 - $45.99
    $8.99 - $45.99
    $8.99
    $4.99 - $39.99
    $4.99

    John Guest PM050812S Stem Adapter - 5/16" x 1/4" BSP

    JOHN GUEST
    PM050812S

    John Guest PM050812S Stem Adapter  - 5/16" x 1/4" BSP Features: Push-fit technology ensures secure, reliable, and leak-free connections Easy st...

    View full details
    $4.99 - $39.99
    ($4.99 each)
    $8.99 - $45.99
    $8.99 - $45.99
    $8.99
    $4.99 - $39.99
    $4.99
    Save up to 13% % Off
  • John Guest PM050402S Stem Adapter - 5/32" x 1/4" BSPT STEM ADAPTER Grey Acetal JOHN GUEST 10-Pack
    John Guest PM050402S Stem Adapter - 5/32" x 1/4" BSPT STEM ADAPTER Grey Acetal JOHN GUEST 1-PC
    Save up to 13% % Off
    $4.99 - $39.99
    ($4.99 each)
    $8.99 - $45.99
    $8.99 - $45.99
    $8.99
    $4.99 - $39.99
    $4.99

    John Guest PM050402S Stem Adapter - 5/32" x 1/4" BSPT

    JOHN GUEST
    PM050402S

    John Guest PM050402S Stem Adapter  - 5/32" x 1/4" BSPT Features: Push-fit technology ensures secure, reliable, and leak-free connections Easy s...

    View full details
    $4.99 - $39.99
    ($4.99 each)
    $8.99 - $45.99
    $8.99 - $45.99
    $8.99
    $4.99 - $39.99
    $4.99
    Save up to 13% % Off
  • John Guest PM050823S Stem Adapter - 5/16" x 3/8" NPTF STEM ADAPTER Grey Acetal JOHN GUEST 10-Pack
    John Guest PM050823S Stem Adapter - 5/16" x 3/8" NPTF STEM ADAPTER Grey Acetal JOHN GUEST 1-PC
    Save up to 43% % Off
    $3.99 - $34.99
    ($3.99 each)
    $6.99 - $37.99
    $6.99 - $37.99
    $6.99
    $3.99 - $34.99
    $3.99

    John Guest PM050823S Stem Adapter - 5/16" x 3/8" NPTF

    JOHN GUEST
    PM050823S

    John Guest PM050823S Stem Adapter  - 5/16" x 3/8" NPTF Features: Push-fit technology ensures secure, reliable, and leak-free connections Easy s...

    View full details
    $3.99 - $34.99
    ($3.99 each)
    $6.99 - $37.99
    $6.99 - $37.99
    $6.99
    $3.99 - $34.99
    $3.99
    Save up to 43% % Off
  • John Guest PM050821S Stem Adapter - 5/16" x 1/8" NPTF STEM ADAPTER Grey Acetal JOHN GUEST 10-Pack
    John Guest PM050823S Stem Adapter - 5/16" x 3/8" NPTF STEM ADAPTER Grey Acetal JOHN GUEST 1-PC
    Save up to 43% % Off
    $3.99 - $34.99
    ($3.99 each)
    $6.99 - $37.99
    $6.99 - $37.99
    $6.99
    $3.99 - $34.99
    $3.99

    John Guest PM050821S Stem Adapter - 5/16" x 1/8" NPTF

    JOHN GUEST
    PM050821S

    John Guest PM050821S Stem Adapter  - 5/16" x 1/8" NPTF Features: Push-fit technology ensures secure, reliable, and leak-free connections Easy s...

    View full details
    $3.99 - $34.99
    ($3.99 each)
    $6.99 - $37.99
    $6.99 - $37.99
    $6.99
    $3.99 - $34.99
    $3.99
    Save up to 43% % Off
  • John Guest PM050421S Stem Adapter - 5/32" x 1/8" NPTF STEM ADAPTER Grey Acetal JOHN GUEST 10-Pack
    John Guest PM050421S Stem Adapter - 5/32" x 1/8" NPTF STEM ADAPTER Grey Acetal JOHN GUEST 1-PC
    Save up to 43% % Off
    $3.99 - $34.99
    ($3.99 each)
    $6.99 - $37.99
    $6.99 - $37.99
    $6.99
    $3.99 - $34.99
    $3.99

    John Guest PM050421S Stem Adapter - 5/32" x 1/8" NPTF

    JOHN GUEST
    PM050421S

    John Guest PM050421S Stem Adapter  - 5/32" x 1/8" NPTF Features: Push-fit technology ensures secure, reliable, and leak-free connections Easy s...

    View full details
    $3.99 - $34.99
    ($3.99 each)
    $6.99 - $37.99
    $6.99 - $37.99
    $6.99
    $3.99 - $34.99
    $3.99
    Save up to 43% % Off