Slim Line Housings
Pentek - Slim Line 10" Filter Housing - Blue Cap / Clear Sump
Pentek - Slim Line 10" Filter Housing - Black Cap / Blue Sump
Pentek - Slim Line 5" Filter Housing - Blue Cap / Clear Sump
Pentek - Slim Line 20" Housing - Black Cap / Blue Sump
Premium Filter Housings
Pentek Slim Line Housings for Every Application
Compact, durable, and engineered for reliable water filtration in residential and light commercial settings
Pentek Slim Line housings deliver professional-grade water filtration in a space-saving design that fits under sinks, in tight utility closets, and anywhere you need clean water without bulk. Trusted by homeowners and contractors alike, these housings accommodate standard cartridge filters and feature convenient pressure release buttons for effortless filter changes.
Why Choose Slim Line
Built for Performance and Convenience
Universal Compatibility
Designed to work with all standard 2.5-inch diameter filter cartridges from leading manufacturers, giving you complete flexibility in choosing sediment, carbon, or specialty filters to match your water quality needs.
Durable Construction
Manufactured from high-impact, reinforced plastic materials that resist cracking and wear, these housings maintain their integrity through years of use and countless filter changes in both hot and cold water applications.
Space-Saving Design
The slim 2.5-inch diameter profile fits in cramped spaces where traditional housings cannot, making them perfect for under-counter installations, RV systems, and anywhere floor space or clearance is at a premium.
Selection Guide
Choose Your Perfect Housing Configuration
Select Your Filter Length
Choose from 5-inch, 10-inch, or 20-inch housings based on your flow rate requirements and available installation space. Longer filters provide greater capacity and less frequent changes, while shorter units fit tighter areas.
Pick Cap and Sump Colors
Available in practical color combinations including black cap with blue sump, blue cap with clear sump for visual filter monitoring, or white-on-white for clean aesthetics. Clear sumps let you see when filters need replacement without opening the housing.
Verify Thread and Port Specifications
Most Slim Line housings feature standard 3/4-inch NPT threaded inlet and outlet ports, though specialized models offer 1/4-inch NPT for point-of-use applications. Confirm your plumbing connections before ordering to ensure proper fit.
Pro Tip: Always depressurize your Slim Line housing using the red pressure release button before attempting to unscrew the sump for filter changes. This simple step prevents water spray and makes the housing much easier to open, extending the life of your o-ring seals.
Quick Filter Changes
The pressure release button and hand-tighten sump design mean you can swap filters in minutes without tools, reducing maintenance time and making routine service accessible to any homeowner.
Tested and Certified
Pentek housings meet NSF standards for material safety and structural integrity, ensuring that your filtration system performs reliably at rated pressures up to 125 PSI and temperatures up to 100°F.
Versatile Applications
Ideal for whole-house sediment filtration, under-sink drinking water systems, ice maker protection, appliance pre-filtration, and point-of-entry treatment in homes, offices, restaurants, and light industrial facilities.
Cost-Effective Solution
With replacement filters widely available at competitive prices and long-lasting housing construction that rarely needs replacement, Slim Line systems deliver clean water at a fraction of the cost of bottled water or complex treatment systems.
