John Guest Plumbing Fittings are generally regarded as the best purpose designed plumbing fittings for caravan use and here at RV Parts Express, we stock a wide selection. Due to our ongoing business relationships with both distributors and manufacturers we can also usually source John Guest Plumbing Fittings that haven’t yet been added to our inventory so please feel free to contact us if you cannot see the fitting you are looking for featured below. 

For further information about our plumbing fittings featured below, simply click on the required picture. You will find information regarding compatibility, full product specifications and also delivery information. Regardless of whether you need a tempering valve, adapter or connector, RV Parts Express offer competitive pricing and a sector leading level of customer service. Our staff are on hand and ready to help should you have any questions or need help placing your order.


John Guest Plumbing Fittings

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  1. JG PLASTIC 12MM x 1/2" BSPT STRAIGHT MALE STEM ADAPTOR. PM051204E
    $5.50
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    JG PLASTIC 12MM x 1/2" BSPT STRAIGHT MALE STEM ADAPTOR. PM051204E

  2. John Guest 1/2 barb for tube fitting 15mm x 1/2"
    $7.95
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    John Guest 1/2 barb for tube fitting 15mm x 1/2"

  3. John Guest 1/2" brass male adapter with 12mm plastic elbow
    $15.70
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    John Guest 1/2" brass male adapter with 12mm plastic elbow

  4. John Guest 12mm 1/2" Tube to Hose Brass
    $9.65
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    John Guest 12mm 1/2" tube to hose brass

  5. John Guest 12mm 3/8" straight adapter male plastic
    $8.35
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    John Guest 12mm 3/8" straight adapter male plastic

  6. John Guest 12mm bulkhead adapter
    $9.96
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    John Guest 12mm bulkhead adapter

  7. John Guest 12mm equal divider
    $9.95
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    John Guest 12mm equal divider

  8. John Guest 12mm Locking clip
    $1.00
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    John Guest 12mm Locking clip

  9. John Guest 12mm plastic swivel elbow male 1/2" BSPT
    $12.95
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    John Guest 12mm plastic swivel elbow male 1/2" BSPT

  10. John Guest 12mm series 08 red plug
    $3.95
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    John Guest 12mm series 08 red plug

  11. John Guest 12mm single check valve
    $26.95
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    John Guest 12mm single check valve

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