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

2 x	1st stage SF05 sediment filter (replace every 6-12 months)
2 x	335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x	741-14, Diverter Valve for Countertop Water Units
8 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	913, 5th stage inline carbon filter (every 12 months)
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
4 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
7 x	201, 1st stage sediment filter (replace every 6-12 months)
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	213, 4th stage inline carbon filter (replace every 12 months)
1 x	578, TDS Water Quality Meter tds-3
5 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x	Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
2 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x	5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
3 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
1 x	732, Inline Pressure Gauge 0 to 300 psi for RO filter system
2 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x	WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
5 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
6 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x	DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
3 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
2 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	205, 2nd stage carbon block filter (replace every 12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	WT-bac, Water Testing Kit, Bacteria Test
1 x	Discontinued RD150
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x	324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
2 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
3 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x	KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
3 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
2 x	KT-103, Optional Manual Membrane Flush Valve
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x	.AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x	DB40, DI Resin Refill Bag for DI210, RD322
1 x	WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
3 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x	AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	WSACF-150T, Whole House Water Treatment ACF-150T
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x	.AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
2 x	MK8002, Maintenance kit for double membrane system RD322 RO260
1 x	3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x	WS-150M, Whole House Water Softener
2 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
2 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
2 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	.RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x	565, Digital Pressure Gauge Tester Monitor
1 x	FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x	Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
2 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	Discontinued RO585
1 x	KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x	225, 5th stage Inline Alkaline filter with clear case (annual)
2 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	.SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x	PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
2 x	752, DC Booster Pump w/ Transformer
2 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x	.K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x	TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x	FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x	SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"

View Cart	$14,550.43

2 x	1st stage SF05 sediment filter (replace every 6-12 months)
2 x	335UP, Upgrade Kit TFC 35 gal/day (includes US membrane filter)
1 x	741-14, Diverter Valve for Countertop Water Units
8 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	913, 5th stage inline carbon filter (every 12 months)
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
4 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
7 x	201, 1st stage sediment filter (replace every 6-12 months)
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	213, 4th stage inline carbon filter (replace every 12 months)
1 x	578, TDS Water Quality Meter tds-3
5 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x	Panel 1/2" 6710M-44TM Digital Flow Meter count up Gallon 115V
2 x	318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x	5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x	MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
3 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	204, 2nd stage GAC filter (replace every 6-12 months)
1 x	732, Inline Pressure Gauge 0 to 300 psi for RO filter system
2 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x	WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
5 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
2 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
6 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x	DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
3 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
2 x	3150, 5th stage TFC-150 US membrane filter (every 2-3 years)
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	205, 2nd stage carbon block filter (replace every 12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD322
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
1 x	WT-bac, Water Testing Kit, Bacteria Test
1 x	Discontinued RD150
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x	324, 4th stage TFC-24 US membrane filter (replace every 2-3 yrs)
2 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
3 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
2 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	WH-10, Whole House Water Treatment Carbon Filter System 10" Big
1 x	KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
3 x	B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
2 x	KT-103, Optional Manual Membrane Flush Valve
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	Panel 1" Digiflow 6710M-88TM Digital Flow Meter count up GPM 115
1 x	.AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
1 x	DB40, DI Resin Refill Bag for DI210, RD322
1 x	WH-5, Whole House Water Treatment Sediment Filter System 10" Big
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO260
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
3 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	4th stage TFC 75/85 US membrane filter (every 2-3 yrs) M75
1 x	AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	WSACF-150T, Whole House Water Treatment ACF-150T
1 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
1 x	.AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
2 x	MK8002, Maintenance kit for double membrane system RD322 RO260
1 x	3/4" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x	WS-150M, Whole House Water Softener
2 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	FKD-66, Replacement Filter Pack SED2005 CB2010 DB40 for RD322
2 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	Micro 1/4 NPT Digital Flow Meter count up total Water Liter LPM
2 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	.RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
1 x	565, Digital Pressure Gauge Tester Monitor
1 x	FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x	Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
2 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	Discontinued RO585
1 x	KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x	225, 5th stage Inline Alkaline filter with clear case (annual)
2 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	.SW-1C COUNTERTOP WATER FILTER SYSTEM (CLEAR HOUSING)
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	TMR-220V-1A Aquatec TACS234-19 Transformer Power Supply EuroPlug
1 x	PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
2 x	752, DC Booster Pump w/ Transformer
2 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x	.K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x	TMR-AQT-2A, Transformer Power Supply Aquatec TACS114-48 for 8800
1 x	SV-24AC-38, KSD Solenoid Valve ESO 3/8" brass, 24V AC
1 x	AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x	FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x	SC207, Specialty Filter Refillable Color Changing DI Filter for
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x	277, SED1005BB Big Blue 5 micron sediment filter 10"

View Cart	$14,550.43