800.880.9383
Mon - Fri 9am - 5pm PT
Whole-house & Commercial Parts
Reliable water treatment depends on the small components you rarely see. Whole-house & Commercial Parts keep filtration systems and water softeners sealed, stable, and performing as designed. From a quick fix to a planned service interval, the right part supports a steady flow and helps prevent leaks. Everything is organized to make routine upkeep simpler for homes, offices, and job sites.
About Whole-house & Commercial Parts
Options in this collection focus on replacement parts and system components used across whole-house filtration, softeners, and light commercial setups. Common wear items include O-rings for standard and big blue housings, plus seals that maintain pressure and stop drips at the sump. Service and tank components include riser tubes, upper distributor baskets, and related pieces that support media beds and help backwash cycles work correctly. Control and electrical replacements are available too, such as power adapters, circuit boards, and turbine flow meter kits for popular valve platforms. Installation hardware rounds out the category with bypass valves, drain elbows, brine line quick-connect adapters, stainless lag screws, and flexible water lines for clean routing. Product pages highlight fitment details, sizes, and compatibility notes so you can confirm what matches your system before checkout.
Why choose iFilters for Whole-house & Commercial Parts?
iFilters brings parts, filters, and accessories into one place, which helps reduce time spent sourcing from multiple suppliers. Brands like PRO+AQUA, Hydronix, and Aquatrol appear alongside iFilters essentials, giving you practical choices for different budgets and service plans. Sorting tools and customer ratings make it easier to spot best sellers and proven replacements for repeat maintenance. In-stock visibility supports faster planning when a leaking seal or failed component needs a timely fix. Clear listings help you order with confidence and keep water quality consistent.
Shop whole-house & commercial parts online today!
Sale
$2.59
$2.34
The Hydrofit HDF-UT04 1/4" Union Tee has Quick Connect ports for an easy push-in installation. Hydrofit Quick Connect Fittings are designed to prov...
View full detailsSale
$2.59
$2.34
Sale
$1.80
$1.62
The Hydrofit 1/4" Tube x 1/8" NPTF Fixed Elbows are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide all the typic...
View full detailsSale
$1.80
$1.62
Sale
$19.99
$18.00
Pro+Aqua 3/8" Brine Line Quick Connect Adapter
Sale
$19.99
$18.00
Sale
$1.80
$1.62
The Hydrofit 1/4" Tube x 3/8" NPTF Fixed Elbows are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide all the typic...
View full detailsSale
$1.80
$1.62
Sale
$51.97
$46.78
The Hydronix HF45-20BLBK10 20" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. It is made of ...
View full detailsSale
$51.97
$46.78
Sale
$55.98
$50.39
3/4" Stainless Steel Bypass Valve for Pro+Aqua, Aquatrol, Fleck Control Heads 56 Series, 2510, 5600, 5600SXT, 9000, 9100
Sale
$55.98
$50.39
Sale
$58.99
$53.10
3/4"Plastic Bypass Valve for Pro+Aqua, Aquatrol, Fleck Control Heads 56 Series, 2510, 5600, 5600SXT, 9000, 9100
Sale
$58.99
$53.10
Sale
$87.28
$78.56
The Hydronix HF45-20CLBK10 (Note: Picture shows PR version, this one does not include the PR button) 20" Clear Filter Housing is an extra-wide hous...
View full detailsSale
$87.28
$78.56
Sale
$53.24
$47.92
Hydronix HF45 Series (Pressure Relief Button version) Commercial Filter Housings are high durability commercial filter housings for 20" length cart...
View full detailsSale
$53.24
$47.92
Sale
$99.00
$89.10
The Hydronix HF45-20CLBK15PR Big Blue size 20" Clear Filter Housing with PR button is an extra-wide housing that accommodates large 4.5" wide filte...
View full detailsSale
$99.00
$89.10
Sale
$211.77
$190.60
The Hydronix HF45-20CLBK10PR 20" Clear Filter Housing (with Pressure Relief Button) is an extra-wide housing that accommodates large 4.5" wide filt...
View full detailsSale
$211.77
$190.60
Sale
$40.19
$36.18
The Hydronix HF45-10BLBK10PR 10" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. This housing...
View full detailsSale
$40.19
$36.18
Sale
$55.98
$50.39
1" Stainless Steel Bypass Valve for Pro+Aqua, Aquatrol, Fleck Control Heads 56 Series, 2510, 5600, 5600SXT, 9000, 9100
Sale
$55.98
$50.39
Sale
$0.95
$0.86
Hydronix NP-38 3/8" NPT Male Nipple Connector – Polypropylene, NSF Approved The Hydronix NP-38 is a high-quality 3/8" NPT male nipple connector mad...
View full detailsSale
$0.95
$0.86
Sale
$62.79
$56.52
The Hydronix HF45-10CLBK10PR 10" Clear Filter Housing (with Pressure Relief Button) is an extra-wide housing that accommodates large 4.5" wide filt...
View full detailsSale
$62.79
$56.52
Sale
$5.44
$4.90
The Hydrofit 3/8" Inline Check Valve is NSF to NSF/ANSI certified Hydrofit Quick Connect Fittings are designed to provide all the typical benefits ...
View full detailsSale
$5.44
$4.90
Sale
$2.50
$2.25
The HDF-UC0604 is used to increase or reduce 3/8" hoses to 1/4" hoses. This fitting features Quick Connect ports for an easy push in installation.
Sale
$2.50
$2.25
Sale
$1.80
$1.62
The Hydrofit 1/2" Quick Change Tube x 1/2" MNPT Fixed Elbows are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide ...
View full detailsSale
$1.80
$1.62
Sale
$26.80
$24.12
The HF4-20WHWH38 is a 20" White Body housing with a White Flat Cap and 3/8" port. This housings has Double O-Rings. Uses any brand of standard 2.5”...
View full detailsSale
$26.80
$24.12
Sale
$9.98
$8.99
Hydronix SPV-40CAPORING - Cap O-Ring for 4" SPV RO Vessel OEM Replacement O-Ring for Hydronix 4" SPV Stainless Steel RO Pressure Vessels The Hydron...
View full detailsSale
$9.98
$8.99
Sale
$38.99
$35.10
2 Pack 18" Corrugated Stainless Steel Flexible Water Line with 1" NPT Port. These bendable flex hoses allow for easy installation for Water Softene...
View full detailsSale
$38.99
$35.10
Sale
$94.99
$85.50
Aquatrol AT-0948BK-25T 9 x 48 Pg Pressure Tank - 2.5” T Connection, Standard Base, Black
Sale
$94.99
$85.50
Sale
$1.90
$1.71
The Hydrofit HDF-SRT0404 1/4" Tube x 1/4" Tube x 1/4" Stem are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide al...
View full detailsSale
$1.90
$1.71
Sale
$51.97
$46.78
The Hydronix HF45-20BLBK34 20" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. It is made of ...
View full detailsSale
$51.97
$46.78
