New Cutoff Switches with Built-in Hand-Ratcheting Float That Adjusts Without Uninstalling

Press Release Summary:

  • SS1 is an IMC-compliant inline float switch that is 3.8-inches long and designed for primary drain lines
  • SS2 is 4-1/2-inches long and designed for use on a primary drain pan auxiliary outlet
  • SS3 is designed with a thumb-screw bracket to attach to the side of most one to two-inch-high primary and auxiliary drain pans

Original Press Release:

RectorSeal® Introduces Design Updates for Safe-T-Switch® Condensate Overflow Cutoff Switches

RectorSeal®, Houston, a leading manufacturer of quality HVAC/R tools and accessories, a wholly owned subsidiary of CSW Industrials Inc. [Nasdaq:CSWI], introduces its enhanced Safe-T-Switch® product line of low-voltage condensate overflow cutoff switches and an inline cleanout for residential and commercial air conditioning equipment targeting worldwide HVAC markets.

The new designs feature technological updates to the HVAC industry’s best-selling, legendary SS1, SS2 and SS3 safety cutoff switches at a similar price point, plus the introduction of the new SC1 inline cleanout device. All three Safe-T-Switch models feature a magnetic reed switch, detect clogged condensate drains to shut off A/C units and prevent water damage to property. They will debut alongside the SC1 at HVAC wholesale distributors starting in late third quarter 2020.

RectorSeal’s patented SS1, SS2 and SS3 will be the industry’s only condensate overflow switches with a built-in, easy-access, external, hand-ratcheting float that adjusts without uninstalling or cap removal. This feature allows precise float level adjustability to minimize false shut-offs. The corrosion-resistant ratchet’s adjustability also helps prevent the lightweight, hard foam, polypropylene float’s contact with the base bottom (or drain pan with the SS3) where bio-growth build-ups can affect buoyancy and reliability. Both the SS1 and SS2 have two tapered thumb cams that lock the gasketed cover and offer quick clean/check accessibility without special tools.

The patented SC1 cleanout device features a Schrader valve connection designed for use with RectorSeal’s Lineshot™, a CO2 pressurized condensate line flushing tool (sold separately). The SC1 is International Mechanical Code-compliant (IMC 307.2.5--Cleanouts), because it eliminates condensate drain line disassembly to clear blockages, which can also be labor-intensive and raise service call costs. The SC1, which doesn’t detect blockages, can be complemented with the SS1, SS2 or SS3 for detecting and shutting down a/c units with blocked drain lines. The SC1 also has two tapered thumb cams that lock the gasketed cover and comes with the same L-shaped cleanout tool as the SS1.

The SS1 is an IMC-compliant inline float switch that is 3.8-inches long (96.5-mm) and designed for primary drain lines. The SS1 also includes an L-shaped, 1-inch-diameter (26-mm) directional cleanout device that is stored in a clip on the cap’s exterior. After removing the cap/float assembly from the base, the gasketed directional cleanout device can be positioned tightly inside the SS1 base to pressurize blockages downline with the LineShot tool. The directional cleanout device can also be reversed inside the base to vacuum out blockages up-line from the drain pan with a pump, such as RectorSeal’s A/C Drain Pump.

The SS2 is 4-1/2-inches long (114-mm) and designed for use on a primary drain pan auxiliary outlet. A 3/4-inch (19-mm) PVC adaptor is included, if needed. 

The SS3 is designed with a thumb-screw bracket to attach to the side of most one to two-inch-high (25-mm and 50–mm) primary and auxiliary drain pans. The new thumb screw facilitates simple and quick installation, while the hand ratchet allows float adjustment without removing the SS3 from inside the drain pan.

Other features are:

  • Included six-foot-long (152-mm), dual 18-gauge wire connects to air handler’s thermostat terminals;
  • UL listing on SS1, SS2 and SS3;
  • Vertical movement capacity on ratcheted float level of .31-inches (7.8-mm) for the SS1; .44-inches (11-mm) on the SS2; and 1-inch (25-mm) for the SS3;
  • The Schrader valve connection and SC1 itself can also be pressurized with nitrogen up to 15-psi;
  • One year warranty;
  • Blister packaging with updated logos and instructions on black cardboard inserts.

Safe-T-Switch installation and service instruction is available free with On-Demand Training with RectorSeal, a free program for individuals or groups of HVAC service technicians. Participants can sign up for 20 to 40-minute interactive online classes at with RectorSeal’s NATE-certified product trainer, Jerry Myren. Registrants receive a confirmation email and receive an invitation on their Google, Outlook or other calendar options.

For additional information on the entire Safe-T-Switch product line, please visit; email:; or call 800-231-3345. 

About RectorSeal:

RectorSeal LLC, a CSW Industrials Inc., is a manufacturer of chemical, mechanical and firestopping products for the professional trades. The company is centered on a simple mission: To provide innovative solutions to the professional trades. RectorSeal wants to help professionals in the heating & cooling, plumbing, electrical and construction industries perform their work faster and with greater reliability. Founded in 1937, RectorSeal originally focused on manufacturing specialty chemical sealants. One of our first products, RectorSeal Number 5, became a staple of the plumbing industry, serving as a common thread sealant throughout the U.S. Since these beginnings, RectorSeal has continued to grow by expanding its offering of chemical and mechanical products to support the tradesman. Today, RectorSeal has developed a robust line of chemical, mechanical and firestopping products. These products are distributed through an extensive wholesale distribution network. Primary products include thread sealants, firestopping sealants, plastic pipe cements, anti-seize compounds, fluxes, lubricants, chemical cleaners, duct sealants, leak locators, and other specialized products. Many of these products have built a strong following among contractors due to their differentiated performance and from being the first to tackle challenges faced by the professional trade. For more information, visit, email: or call (800) 231-3345.

About CSW Industrials:

CSWI is a diversified industrial growth company with well-established, scalable platforms and domain expertise across two segments: Industrial Products and Specialty Chemicals. CSWI's broad portfolio of leading products provides performance optimizing solutions to its customers. CSWI's products include mechanical products for heating, ventilation, air conditioning, and refrigeration applications, sealants, and high-performance specialty lubricants. Markets that CSWI serves include: HVAC/R, architecturally-specified building products, general industrial, plumbing, rail, energy, and mining. For more information, please visit

Delicia Shyu
Marketing Comm. Director
RectorSeal LLC

John Parris Frantz
J.P.F. Communications

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