Heating, Cooling & Air Quality

Protects appliances and plumbing from harmful hardness and iron build-up. Perfect for a 1-3 bathroom home on municipal or well water. Large Capacity 4.5" x 20" Filter Cartridge with 5 Micron Filtration. Recommended cartridge replacement every 6-12 months. Space-saving filter housing with patented bacteriostatic...

RKIN 200 GPD Encapsulated Reverse Osmosis Membrane QT Series. MPN: RC-QT-RO. Replace every 12-24 months or as needed. GPD: 200 Maximum pressure: 87 PSI / 0.6 MPa Maximum temperature: 100°F / 38°C Minimum temperature: 39°F / 4°C Local water quality may affect the longevity and...

Protects appliances and plumbing from harmful hardness build-up. Compact, space-saving design. Certified components. Perfect for homes with 1 - 2 full-time residents. 1-Year Money-Back Guarantee. Lifetime Warranty on Tanks and Parts. Free Shipping within the continental US. US-based Technical Support. Detailed, easy to follow,...

Transforms ordinary tap water into filtered, healthy spring-like water throughout your entire home: Filters sediment, chlorine, and other disinfection by-products. Protects appliances and plumbing from harmful hardness build-up. Large Capacity 4.5" x 20" Filter Cartridges. Filter Housing with Patented Microban Technology. Compact, space-saving design....

This RKIN test package in collaboration with SimpleLab. Basic water quality testing for one (1) drinking water sample in any home, building, or facility served by a municipal water utility supply or well. Analyzes for common drinking water health concerns–such as heavy metals, common bacteria,...

RKIN U1 Hydrogen Module. MPN: RC-HGPEM, Replace every 6-12 months or as needed.

CBS PPH Replacement 5 Micron Sediment Cartridge with Antiscale Media.  Recommended replacement every 6-12 months. 

Certified performance for Lead, Cyst, PFOA, and PFOS treatment. Filters sediment, chlorine, and other disinfectant by-products. Easy to replace filters - no tools required. Lifetime Warranty on Tanks and Parts*. Free Shipping within the continental US. US-based Technical Support. Detailed, easy-to-follow, step-by-step instructions for...

Transforms ordinary tap water into filtered, healthy spring-like water throughout your entire home. Filters sediment, chlorine, and other disinfection by-products. Protects appliances and plumbing from harmful hardness build-up. Certified components. Lifetime Warranty on Tanks and Parts*. Filters Out Harmful Contaminants Remove up to 99.6%...

  Transforms ordinary tap water into filtered, healthy spring-like water throughout your entire home. Filters sediment, chlorine, and other disinfection by-products. Certified components. Lifetime Warranty on Tanks and Parts*. Free Shipping within the continental US. Detailed, easy to follow, step by step instructions for...

Available for pre-orderEstimated shipping in early September. OnliPure Edition Replacement filter set for Zero Installation Purifier Countertop Reverse Osmosis System. FIRST STAGE FILTRATION: 5-micron Prefilter removes Sediment, Rust, and other large particles. SECOND STAGE FILTRATION: Carbon Block Filter removes Chlorine and other Disinfection by-products....

Replacement filter element for RKIN Zero Installation Purifier or RKIN Flash Undersink Water Filter System.75 Gallon Per Day Reverse Osmosis Membrane. This element needs to be replaced only every 2 - 4 years, or as needed.Note: If the reverse osmosis membrane is getting clogged due to...

Uses the power of oxygen to transform ordinary well water into filtered, healthy spring-like water throughout your entire home. Filters iron, sulfur, and manganese. Salt Based Water Softener protects appliances and plumbing from harmful hardness build-up. Certified components. Bluetooth App-enabled but not required. Lifetime...

UV and sweat protection for extended water softener tank lifespan and great look. Neoprene and zipper construction for a snug fit. 

Expanded drinking water quality testing for one (1) sample in a home, building, or facility served by a municipal water utility supply or well. Analyzes for common drinking water health concerns–including heavy metals, common bacteria, nitrates, and general chemistry–as well as volatile organic compounds...

Uses the power of oxygen to transform ordinary well water into filtered, healthy spring-like water throughout your entire home Filters iron, sulfur, and manganese Maintenance Free Certified components Bluetooth App-enabled but not required Lifetime Warranty on Tanks and Parts* Free Shipping within the continental...

Available for pre-orderEstimated shipping in early September. AlcaPure Edition Replacement filter set for Zero Installation Purifier Countertop Reverse Osmosis System: FIRST STAGE FILTRATION5-micron Prefilter removes Sediment, Rust, and other large particles. SECOND STAGE FILTRATIONCarbon Block Filter removes Chlorine and other Disinfection by-products. NEW Option...

Replacement cartridge for RKIN OP1L Certified Whole House Lead, Cyst, PFOA, and PFOS Treatment System. Recommended replacement every 100,000 gallons or every 12 months, whichever comes first.  Please follow the filter replacement instructions available by clicking here.  The reset button is very small and...

Alkaline post-filter replacement for Zero Installation Purifier Countertop Reverse Osmosis System.Note: This filter is also included with the annual filter change bundle. Size: 2 x 10Fourth Stage Filtration - Must have post filter for any Reverse Osmosis Filtration System. Returns beneficial minerals to water-...

RKIN Flash Post Filter Options: AlcaPure ALKALINE POST FILTER. Polishing Alkaline Post Filter returns beneficial minerals – Calcium and Magnesium to purified water for the best taste. It also increases the alkalinity of the water to a healthy level of 7-8 pH. OnliPure ION...