Log In Log In  |  Checkout   |  51 item(s)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x *Discontinued* RD102
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 578, TDS Water Quality Meter tds-3
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x KT-103, Optional Manual Membrane Flush Valve
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
View Cart$1,885.14
Home
Specials Log InCreate Account Checkout  Shopping Cart51 item(s)
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x PH80, Digital pH Meter Hydrotester Calibration Storage Solutions
1 x 6044-combo Compression Type Fitting Elbow and Tee fitting
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x 532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x 324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
1 x .AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x 4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle K5150P
1 x SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x *Discontinued* RD102
1 x .AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
2 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x 2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x 335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x 3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x 213, 5th stage inline carbon postfilter (replace every 12months)
1 x SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x 578, TDS Water Quality Meter tds-3
1 x 4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x KT-103, Optional Manual Membrane Flush Valve
1 x Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
View Cart$1,885.14

FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch [FPK-AUC0706]

$19.95

FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch

Quantity

 

Description

 

 

6

Union Connector, 1/2" to 3/8"

part# AUC 0706

 



 

 

* 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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