Large selection of replacement water filters, reverse osmosis membranes, testing kits and water filter system repair parts. From one water filter or membrane to case quantity discounts.

LOW PRICES and FAST SHIPPING SINCE 1999 !

99.5% Of All Items In Stock For Same Day Shipping!

Housings Standard

3/4" Standard Water Filter Housings

POE (point of entry) Whole House Water Filters and POU (point of use) Drinking Water Systems

  1. Molykote-From DOw Corning- 111 Compound-6 Gram O-ring Silicone Lubricant & Sealant-Dow-111-5-gram-1000
    Dow Corning (Molykote) ® 111 6 gram O-ring Silicone Lubricant and Sealant - Be sure to lube your O-rings to help prevent leaks.
    Dow Corning/Molykote ® 111 6 gram O-ring Silicone Lubricant and Sealant - 6 gram pillow pack. (like a ketchup packet) Great O-ring sealant and lubricant. FDA and NSF approved. (Do Not Use Petroleum Jelly As It May Break Down O-rings Or Housings) This is the same premium grade silicone sealant and lubricant used in underwater photography cameras, scuba gear and other underwater applications that simply can't afford leaks. Why not use the best for your reverse osmosis or drinking water filtration system?

    Dow 111 Silicone MSDS Safety Sheet

    Learn More
    $5.99 Special Price $3.99 As low as $1.79
  2. Pentek ® 150015 High Temperature 3/4 Inch Standard Water Filter Housing - Red
    Pentek ® 150015 High Temperature 3/4 Inch Standard Water Filter Housing - Red
    Pentek ® 150015 High Temperature 3/4" Standard Water Filter Housing. 10" red color, high temperature housing (100 degrees F) with 3/4" female NPT threaded high flow ports. Learn More
    $129.99 Special Price $99.99 As low as $84.99
  3. Pentek ® 150067 Standard 3/4 Inch Water Filter Housing - Replaces PVHCL - PSCL
    Pentek ® 150067 Standard 3/4 Inch Water Filter Housing - Replaces PVHCL - PSCL
    Pentek ® 150067 Standard 3/4 Inch Water Filter Housing. 10" Filter Housing with 3/4" threaded female NPT threads. Replaces PVHCL & PSCL. Built in pressure release valve for easier filter changing. Uses standard size filter. Learn More
    $39.99 Special Price $26.99 As low as $22.99
  4. Pentek ® 150069 20 Inch Standard Water Filter Housing
    Pentek ® 150069 20 Inch Standard Water Filter Housing
    Pentek ® 150069 3/4 Inch Standard Water Filter Housing. 20 inch with 3/4" female NPT threaded ports. For 20" replacement filter cartridges. 3/4" ports for higher flow rates. Built in pressure relief valve for easier filter changing. Uses SW-2 filter wrench and 151120 o-rings. Uses standard size filters. Learn More
    $59.99 Special Price $44.99 As low as $39.99
  5. Pentek ® 150071 Clear 3/4 Inch Standard Water Filter Housing
    Pentek ® 150071 Clear 3/4 Inch Standard Water Filter Housing
    Pentek ® 150071 Clear 3/4" Standard Water Filter Housing. 10" with 3/4" female NPT threaded ports. Built in pressure relief valve makes filter chaging easier. Learn More
    $49.99 Special Price $34.99 As low as $29.99
  6. Pentek ® 150578 Mounting Bracket Kit For 3/4 Inch Standard Water Filter Housings
    Pentek ® 150578 Mounting Bracket Kit For 3/4 Inch Standard Water Filter Housings
    Pentek ® 150578 Mounting Bracket Kit For 3/4 Inch Standard Water Filter Housings. Learn More
    $13.99 Special Price $9.99 As low as $7.49
  7. Pentek # 151120 O-Ring Replacement For Standard Size Water Filter Housings
    Pentek # 151120 O-Ring Replacement For Standard Size Water Filter Housings
    Pentek # 151120 O-Ring Replacement For Standard Size Water Filter Housings Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. O-Ring For Standard Size Water Filter Housing. Buna-N FDA Grade. (Standard Size Housings Use A 4" diameter O-Ring) Same as Culligan OR-34 O-ring. Learn More
    $7.99 Special Price $4.99 As low as $2.79
  8. Pentek SW-2 # 150295 SW2 Standard Size Water Filter Housing Sump Spanner Wrench
    Pentek SW-2 # 150295 SW2 Standard Size Water Filter Housing Spanner Wrench Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands
    Pentek SW-2 # 150295 SW2 Standard Size Water Filter Housing Spanner Wrench Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. SW-2 Standard Size Water Filter Housing Wrench. Fits 4 3/4" Standard Size Filter Housings. (Standard Size Housings Use a 4" Diameter "O"Ring) Ametek # 150295 - Only for use in loosening filter housings, never to tighten. Overtightening may cause damage to the O-rings and make re-opening VERY difficult. Hand tighten only. For really stubborn filter housings our technicians will use two wrenches together for maximum power where one wrench might break or not do the job. Our techs know the tricks. Learn More
    $9.99 Special Price $6.99 As low as $3.39
  9. Pentek 151039 Pressure Relief Valve Button Kit
    Pentek 151039 Pressure Relief Valve Button Kit
    Pentek 151039 Pressure Relief Valve is a Replacement Pressure Relief Button Kit that works with whole house housings with pressure release buttons. Learn More
    $8.99 Special Price $4.99