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1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
4 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)

View Cart$848.00
Specials Log InCreate Account Checkout  Shopping Cart38 item(s)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
2 x 205 2nd stage solid carbon block filter (replace every 12 month)
2 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
4 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x 365, 4th stage TFC 50/65 US membrane filter (replace 2-3 yrs)
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Bundle Filter Annual set KPAK-104b Sediment Carbon Resin Refill
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)

View Cart$848.00

AFAU, Female Adapter for Faucet, Refrigerator Ice Maker 1/4 3/8 [AFAU]

$3.50

AFAU, Female Adapter for Faucet, Refrigerator Ice Maker 1/4 3/8



* AFAU, AFAU, Female Adapter for Faucet, Refrigerator Ice Maker connection to the RO system

* UNS Thread, Cone Type

* This fitting is commonly used to connect RO system to drinking water faucet or Refrigerator Ice Maker. (Tube OD 1/4" or 3/8" selection below)

* Please choose size from the selection box below. First number is tubing OD Outside Diameter and second number is UNS Thread. (Pipe sizes can be confusing even for the experienced user. Pipe size is not the actual outside or inside diameter of the pipe but is the industry accepted designation. If you have any question please email us first.)
* 1/4" Tube OD x 7/16"-24 UNF Thread AFAU047
* 3/8" Tube OD x 7/16"-24 UNF Thread AFAU067


* 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. 

Available Options:

Size Combination:

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