ABU, Bulkhead Union Connector [ABU]

$4.50

* ABU, Bulkhead Union Connector

* Please choose size from the selection box below. First number is tubing OD Outside Diameter and second number is NPT National Pipe 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 1/4" NPTF Thread ABU0404
* 1/4" Tube OD x 3/8" NPTF Thread ABU0406
* 3/8" Tube OD x 1/4" NPTF Thread ABU0604
* 3/8" Tube OD x 3/8" NPTF Thread ABU0606
* 1/2" Tube OD x 1/2" NPTF Thread ABU0707

* 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:

Reviews

1 x	FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
3 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
4 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
4 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
3 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	6044-combo Compression Type Fitting Elbow and Tee fitting
3 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x	FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
3 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x	1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
4 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
4 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
5 x	201, 1st stage sediment filter (replace every 6-12 months)
2 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
4 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	SC209, Specialty Filter Nitrate Removal Filter
1 x	1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x	Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
4 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	7044-K Union Tee Connector Fitting Compression type 1/4"
1 x	DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
2 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
4 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x	SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x	225, 5th stage Inline Alkaline filter with clear case (annual)
2 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	MK420, Maintenance kit for RO565
1 x	Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x	SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x	DB40, DI Resin Refill Bag for DI210, RD322
1 x	3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
2 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x	NM-5103, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x	4th Stage Color Changing DI Filter SC207 for AR-104H
1 x	Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x	UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	WH1134 Whole House Restaurant Filter System Sediment Carbon Big
3 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x	1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x	KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x	SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x	Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x	SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x	3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x	Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x	WT-bac, Water Testing Kit, Bacteria Test
1 x	WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x	WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System

View Cart	$5,331.32

1 x	FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
3 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
4 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
4 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
3 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
2 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	6044-combo Compression Type Fitting Elbow and Tee fitting
3 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x	FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
3 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x	1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
4 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
4 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	FM-8000T, DigiFlow Digital Water Flow Meter Rate Count Down
5 x	201, 1st stage sediment filter (replace every 6-12 months)
2 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
4 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	SC209, Specialty Filter Nitrate Removal Filter
1 x	1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x	Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
4 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	7044-K Union Tee Connector Fitting Compression type 1/4"
1 x	DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
2 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
4 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x	SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x	225, 5th stage Inline Alkaline filter with clear case (annual)
2 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	MK420, Maintenance kit for RO565
1 x	Bundle Filter KPAK-104bm Sediment Carbon DI Resin Membrane
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x	SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x	DB40, DI Resin Refill Bag for DI210, RD322
1 x	3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
2 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	FM214G 1/4" NPT Digital Flow Meter count up total Water Gallons
1 x	NM-5103, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x	MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x	4th Stage Color Changing DI Filter SC207 for AR-104H
1 x	Bundle Filter Annual set KPAK-104 Sediment Carbo Block DI Resin
1 x	UC7000 HONEYWELL UNDER THE COUNTER WATER FILTER (WHITE, LARGE)
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
2 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	WH1134 Whole House Restaurant Filter System Sediment Carbon Big
3 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x	1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x	KF310, Elite Series: Polish Chrome Drinking Water Faucet
1 x	SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x	Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x	SC435, Specialty Filter Arsenic / Fluoride Removal Filter
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x	3rd stage Special High Efficiency Membrane Filter HTFC-150
1 x	Panel 1/4 Digital Flow Meter count up total Gallons GPM 56"cable
1 x	WT-bac, Water Testing Kit, Bacteria Test
1 x	WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x	WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System

View Cart	$5,331.32