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1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
4 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
3 x Optional: 564 Membrane Filter Housing Wrench Opener
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x *Discontinued* RO155C
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
View Cart$3,170.38
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Specials Log InCreate Account Checkout  Shopping Cart61 item(s)
1 x 3rd stage C10 carbon block filter (replace every 6-12 months)
2 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
4 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x 5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x 205, 2nd stage carbon block filter (replace every 12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
2 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
3 x Optional: 564 Membrane Filter Housing Wrench Opener
3 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
2 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x Special, Single Stage Housing Bracket Shell Connection Kit
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
3 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x *Discontinued* RO155C
1 x DB40, DI Resin Refill Bag for DI210, RD322
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x 3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x .AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x .RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
View Cart$3,170.38

4042-K Male Elbow Fitting Compression type(membrane housing use) [4042-K]

$2.50

4042-K Male Elbow Fitting Compression type(membrane housing use)



* 4042-K Male Elbow Compression type 1/4" OD TUBING, 1/8" MPT PIPE THREAD

* This fitting is used in Membrane filter housing only.

 



 



* Water & foods use: Products are manufactured from safe, non-toxic materials meeting the requirements of the US FDA, ERAS, ANSI/NSF-51,61, and SK Zert. Our products are widely used in water purification, food/beverage, and pneumatic systems.

* Function & Quality: Provides quick and convenient assembly-saving time & expense.

* Collet Design: Our unique oval collet design is superior and more practical, and is an improvement welcomed by our world wide customers in all industries.

* Additional Applications: Beyond water and food use, fittings can be used with air, gases, vacuum, & liquids. All connections can be assembled & disassembled repeatedly. A broad range of sizes covers a broad scope of applications.

* We carry different fittings in variation of sizes: 1/4", 3/8", or 1/2" adapters, connectors, fittings, or valves.  Most are not listed online, to avoid confusion to majority of RO system customers.  

* Send us a message with specification, intended application, and image of your setup or old fitting  to check if we have what you need. 

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