Description

Protect your foodservice equipment from scale buildup and corrosion with the 3M SF18-S Scale Inhibition Water Filtration System.

Designed for high-temperature applications, the SF18-S system is ideal for coffee brewers, steamers, warewashers, proofers, and hot tea brewers. Its unique proportioning forced-feed orifice precisely delivers a metered dose of high-temperature scale inhibitor, helping prevent mineral deposits on spray heads, boiler walls, heating elements, and sensors.

This system features a Sanitary Quick Change (SQC) design for simple, tool-free cartridge replacement using the HF8-S cartridge. Built with a 316 stainless steel head and 3/4″ NPT female inlet and outlet ports, it’s engineered for performance and longevity in demanding commercial environments. The scale inhibitor media remains stable at temperatures above 200°F (93.3°C), ensuring reliable protection during extended operation.

Key Features:

• Scale Protection at High Temperatures – Helps prevent scale even above 200°F (93.3°C)

• Forced-Feed Orifice Design – Meters the exact amount of scale inhibitor needed

• SQC Cartridge System – Enables fast, clean filter change-outs with 1/4 turn

• Durable Stainless Steel Head – Built to withstand heavy commercial use

• NSF & FDA Compliant Materials – Meets NSF and FDA CFR-21 requirements for safety

• 3/4″ NPT Inlet/Outlet – Easy plumbing integration into existing setups

• Ideal for Coffee & Steam Equipment – Designed for high-temp foodservice appliances

Specifications:

• Model: SF18-S

• Filter Cartridge: HF8-S (replacement)

• Inlet/Outlet Connections: 3/4″ NPT Female

• Max Pressure: 125 psi (862 kPa)

• Max Water Temp: 100°F (37.8°C)

• Scale Inhibitor Stability: Maintains integrity over 200°F (93.3°C)

• Materials: FDA CFR-21 & NSF compliant

• Cartridge Replacement: Every 12 months, at rated capacity, or when flow rate drops

SPEC SHEET

Changing your Filter: