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1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
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 AR122
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System

View Cart$1,085.95
Specials Log InCreate Account Checkout  Shopping Cart34 item(s)
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
2 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x MK200, Maintenance kit for Rotek Systems RCT-103 and RTF-265
1 x FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x Panel 3/4" 6710M-66TM Digital Flow Meter count up GPM 115V
1 x FM-6710M-88 1" Digital Flow Meter count up Total GPM 56" cable
1 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x N-14-1M, Nipple Fitting connector between standard RO housing
1 x AQF-600-102, Flow Meter Panel Mount 3/8" MPT
1 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x FM214G, FM-6710M DigiFlow Digital Water Flow Meter Gauge Moniter
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 565, Digital Pressure Gauge Tester Monitor
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
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 AR122
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x DM-2, Inline Dual TDS monitor (meter) for RO DI System DM2
1 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System

View Cart$1,085.95

ARD, Reducer Fitting Straight Tube OD Stem OD [ARD]

$3.50

ARD, Reducer Fitting Straight Tube OD Stem OD



* ARD, Reducer Fitting Straight Tube OD Stem OD

* Please choose size from the selection box below. First number is tubing OD and second number is Stem OD Outside Diameter (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 3/8" Stem OD ARD0406
* 3/8" Tube OD x 1/2" Stem OD ARD0607


* 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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