--- product_id: 2183690 title: "Pentair Pentek 150233 Big Blue Whole House Filter Housing, 1\" NPT 20-Inch | HFPP Cap with Pressure Relief; 1 in NPT Ports; Fits Any 20 x 4.5 in Cartridge; NSF/ANSI 42 Certified; Cartridge Not Included" brand: "pentek" price: "$428.96" currency: USD in_stock: true category: "Pentek" url: https://www.desertcart.us/products/2183690-pentair-pentek-150233-big-blue-whole-house-filter-housing-1 store_origin: US region: United States of America --- # 20-inch Big Blue capacity 1 psi pressure drop @ 15 gpm NSF/ANSI Standard 42 certified Pentair Pentek 150233 Big Blue Whole House Filter Housing, 1" NPT 20-Inch | HFPP Cap with Pressure Relief; 1 in NPT Ports; Fits Any 20 x 4.5 in Cartridge; NSF/ANSI 42 Certified; Cartridge Not Included **Brand:** pentek **Price:** $428.96 **Availability:** βœ… In Stock ## Summary > πŸ’§ Elevate your home’s water game with Big Blue power β€” because clean water waits for no one! ## Quick Answers - **What is this?** Pentair Pentek 150233 Big Blue Whole House Filter Housing, 1" NPT 20-Inch | HFPP Cap with Pressure Relief; 1 in NPT Ports; Fits Any 20 x 4.5 in Cartridge; NSF/ANSI 42 Certified; Cartridge Not Included by pentek - **How much does it cost?** $428.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/2183690-pentair-pentek-150233-big-blue-whole-house-filter-housing-1) ## Best For - pentek enthusiasts ## Why This Product - Trusted pentek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Smart Pressure Relief Button:** Built-in stainless steel button makes cartridge changes quick and hassle-free. - β€’ **Certified Durability & Safety:** NSF/ANSI Standard 42 certified polypropylene construction ensures long-lasting, reliable filtration. - β€’ **Customizable Filtration Options:** Compatible with sediment, carbon block, GAC, or specialty cartridges to tailor your water quality. - β€’ **Effortless High-Flow Performance:** Maintains a low 1 psi pressure drop at 15 gallons per minute for uninterrupted water flow. - β€’ **Massive 20-Inch Filtration Power:** Extra-large housing fits any 20" x 4.5" cartridge for ultimate whole-house water purity. ## Overview The Pentair Pentek 150233 Big Blue Whole House Filter Housing is a heavy-duty, NSF-certified polypropylene unit designed for high-flow, whole-house water filtration. It supports any 20" x 4.5" cartridge, delivers a minimal 1 psi pressure drop at 15 gpm through 1" NPT ports, and features a pressure relief button for easy maintenance. Ideal for sediment- and chlorine-heavy water, it offers customizable filtration with durable, certified materials to ensure reliable, clean water throughout your home. ## Description The Pentair Pentek 150233 is a 20-inch Big Blue heavy-duty filter housing built for high-flow, whole-house filtration. Its extra-large sump holds any 20" x 4.5" cartridge, so a single vessel handles high sediment loads and flow rates that would overwhelm a standard housing.The housing pairs a molded polypropylene sump with a High-Flow Polypropylene (HFPP) cap featuring 1" NPT inlet and outlet ports and a pressure-relief button that bleeds pressure for easy cartridge changes. It is tested and certified by NSF International to NSF/ANSI Standard 42 for material and structural integrity, with an EPDM O-ring and a 300-series stainless button. Maximum pressure is 90 psi with a low 1 psi drop at 15 gpm, rated for 40-100Β°F water.The filter cartridge, mounting bracket, and wrench are sold separately. For a leak-free seal, hand-tighten the sump plus a 1/4 to 1/2 turn, use Teflon tape on threads, and confirm your plumbing is 1" NPT. Protect from freezing. ## Features - BUILT FOR HIGH-FLOW WHOLE-HOUSE FILTRATION - This extra-large 20-inch Big Blue housing delivers heavy-duty, high-capacity filtration for sediment- and chlorine-heavy water, with a low 1 psi pressure drop at 15 gpm through 1" NPT ports. - FITS ALL 20-INCH BIG BLUE CARTRIDGES - Accepts any 20" x 4.5" heavy-duty cartridge, whether sediment, carbon block, GAC, or specialty, so you can tailor filtration to your water. Filter cartridge sold separately. - NSF-CERTIFIED CONSTRUCTION - The polypropylene sump and High-Flow Polypropylene (HFPP) cap are tested and certified by NSF International to NSF/ANSI Standard 42 for material and structural integrity; includes EPDM O-ring and stainless relief button. - DOES NOT INCLUDE WRENCH OR BRACKET - Ships with the sump, cap, and O-ring only; the mounting bracket, screws, and SW-4 housing wrench are sold separately, as is the filter cartridge. Confirm your plumbing is 1" NPT before ordering. - LEAK PREVENTION - Seat the sump hand-tight, then add a 1/4 to 1/2 turn; do not over-tighten. Use Teflon tape on threaded connections and favor plastic fittings over metal. Rated to 90 psi maximum; protect from freezing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0014C3IOS | | Best Sellers Rank | #13,783 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Industrial Process Filter Housings | | Brand Name | Pentek | | Customer Reviews | 4.4 4.4 out of 5 stars (604) | | External Testing Certification | NSF, ANSI | | Global Trade Identification Number | 00051678502334 | | Item Dimensions D x W x H | 10"D x 10"W x 24"H | | Item Type Name | Whole House Heavy Duty Water Filter Housing with High-Flow Polypropylene (HFPP) Cap and Pressure Relief Button, 20-Inch, Black/Blue | | Item Weight | 2.2 pounds | | Manufacturer | Pentair Industries | | Manufacturer Part Number | 150233 | | Material Type | Polypropylene (PP) | | Model Number | 1" Big Blue NPT | | Number of Items | 1 | | Product Benefits | Heavy duty high low filter housing 1" port holds 20" x4.5 cartrdige. Genuine Pentair Pentek housing | | Set Name | Big Blue | | UPC | 051678502334 | | Unit Count | 1 Count | ## Product Details - **External Testing Certification:** NSF, ANSI - **Item Weight:** 2.2 pounds - **Material:** Polypropylene (PP) - **Product Dimensions:** 10"D x 10"W x 24"H ## Images ![Pentair Pentek 150233 Big Blue Whole House Filter Housing, 1" NPT 20-Inch | HFPP Cap with Pressure Relief; 1 in NPT Ports; Fits Any 20 x 4.5 in Cartridge; NSF/ANSI 42 Certified; Cartridge Not Included - Image 1](https://m.media-amazon.com/images/I/51gx4XdW1eL.jpg) ## Frequently Bought Together - Pentair Pentek 150233 Big Blue Filter Housing, 1" NPT #20 Whole House Heavy Duty Water Filter Housing with High-Flow Polypropylene (HFPP) Cap and Pressure Relief Button, 20-Inch, Black/Blue - Aquaboon Whole House Mounting Bracket for 10" and 20" Water Filter Housing, Compatible with Pentek 244047, 150578, MC-1A, 150061 - Pentair Pentek DGD-5005-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 5 Micron, Pack of 1, White --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/2183690-pentair-pentek-150233-big-blue-whole-house-filter-housing-1](https://www.desertcart.us/products/2183690-pentair-pentek-150233-big-blue-whole-house-filter-housing-1) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-03*