The Pentek 158117 is a heavy-duty Standard 10" Slim Line Blue filter housing manufactured by Pentair/Pentek. It features a blue bottom sump with an opaque cap and is designed to accommodate standard 9-3/4" x 2-1/2" Slim Line filter cartridges. This housing is commonly used in point-of-use (POU) and point-of-entry (POE) applications, including reverse osmosis pre-filtration, under-sink drinking water systems, and light commercial filtration setups where sediment, chlorine taste, and odor reduction are required.

The Pentek 158117 housing has 1/4" FNPT inlet/outlet ports, a maximum operating pressure of 125 psi (8.6 bar), and a temperature range of 40°F to 100°F (4.4°C to 37.8°C). It measures approximately 12-3/4" in height and 4-1/2" in diameter, accepting any standard Slim Line 10" cartridge. The housing itself does not have a micron rating — the micron rating depends on the replacement cartridge installed (typically ranging from 0.5 to 50 microns for compatible Pentek Slim Line cartridges).

Yes, the Pentek 158117 housing is manufactured from FDA-compliant materials and the housing components are certified to NSF/ANSI Standard 42 for material safety and structural integrity. For contaminant reduction certifications (such as NSF/ANSI 53 for lead or cysts), the certification is determined by the specific Pentek Slim Line cartridge you install inside the housing.

The Pentek 158117 housing itself is built for long-term use and does not require regular replacement — only its O-ring should be lubricated with silicone grease and inspected during each cartridge change. The internal Slim Line cartridge should typically be replaced every 6 months or after 1,500–3,000 gallons of use, depending on the specific cartridge type and local water quality. Heavy sediment or high chlorine levels may shorten cartridge life.

The Pentek 158117 accepts any standard 9-3/4" x 2-1/2" Slim Line cartridge. Popular compatible Pentek cartridges include the Pentek P5 (5-micron polypropylene sediment), Pentek CBC-10 (0.5-micron carbon block for cyst and lead reduction), Pentek C1 (5-micron carbon), and Pentek CFB-Plus10 (lead-reducing carbon block). Choose your cartridge based on whether you need sediment, chlorine/taste, or lead/cyst reduction for your specific water treatment goals.