20" Stainless Steel Whole House Water Filter - NSF/ANSI 42
Upgrade your water system with the 20 inch stainless steel filter housing, engineered for strength, reliability, and long service life. Built entirely from premium 304 stainless steel—head, lock ring, and sump—it offers exceptional durability, corrosion resistance, and tolerance to high temperatures. As a result, this housing is the ideal stainless steel Big Blue alternative housing for anyone upgrading from plastic.
The 20 inch stainless steel filter housing is versatile and effective across many applications. For example, it works well in:
- Well water and irrigation systems
- Residential pools and HVAC equipment
- Laboratories, food service, and beverage processing
It functions as a high flow whole house sediment filter, which means it maintains strong water pressure even when handling large volumes. In comparison to plastic housings, the 20 inch water filter housing resists cracking, UV damage, and premature wear. Therefore, it delivers better long-term value.
Pair this housing with Amwater’s reusable stainless steel sediment filters for even greater protection. Together, they trap sand, rust, and debris before water reaches your plumbing or appliances. In addition, the benefits include:
- Longer lifespan for filters and pipes
- Lower maintenance and fewer replacements
- Reliable performance under pressure
Ultimately, stainless steel provides peace of mind and lasting durability. Order your 20” housing today and experience the upgrade.
- Head, ring, sump
- One set of o-ring & gaskets
- Opening stick
- Wall mount
Product Overview
Full Food-Grade 304 Stainless Steel Construction
This housing filter is constructed entirely from food-grade 304 stainless steel—including the head, lock ring, and sump—for superior durability and safety. It resists corrosion, handles high temperatures, and ensures long-term performance in both residential and commercial settings. A robust solution built to withstand harsh water conditions.
Reliable First Line of Defense
Designed to trap large particles, sediments, and rust before they reach your main filtration system, this housing filter protects and extends the life of downstream cartridges. Ideal for well water, pool pumps, HVAC systems, and more—perfect for users who want consistent, clog-free filtration in diverse environments.
Wide Compatibility with Reusable Filters
This housing unit is fully compatible with Amwater’s reusable wire mesh and pleated filter cartridges, and also fits standard filters with a bottom spring design. It offers flexibility for ongoing maintenance and replacement, whether you're using our proprietary filters or third-party options, making it easy to integrate.
- Product Materials: SS304 - Head, Ring and Sump
- Max Temperature: 97°C
- Max PSI: 300 PSI
Reusable Wire Mesh Sediment Filter: SS Wire Mesh Sediment Filter Replacement
Reusable Pleated Sediment Filter: SS Pleated Sediment Filter Replacement
Why Choose Amwater Over Plastic Housings?
Amwater filters feature all-stainless-steel construction for unmatched durability and purity. Unlike plastic housings, they resist cracking, avoid taste contamination, and deliver long-lasting performance—making them the better choice for safe, clean water in any setting.
Compatible with Standard Filter Cartridges
Engineered to fit a wide range of standard-sized filter cartridges in both length and diameter. The internal spring mechanism provides secure alignment and a tight seal, ensuring smooth installation and reliable filtration across various applications and brands.
Built with Premium 304 Stainless Steel
Crafted from high-quality 304 stainless steel, this housing offers exceptional resistance to heat, pressure, and corrosion. Designed for long-term durability, it performs reliably in demanding environments without compromising structural strength or water quality.