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Clear polycarbonate universal stopper with open back and mounting hardware

Safety Technology International

Safety Technology International STI-14200NR-Z003 Universal Stopper home safety

SKU CH-YCN3-Z70BB

A clear polycarbonate universal stopper rated to 350 psi and tested from -40 to 250 °F, includes mounting hardware

  • Product typeTraffic & Parking Lot
  • Protects sprinkler controls from accidental activation with a clear, red, or gray polycarbonate cover
  • Withstands extreme environments from -40 °F to 250 °F for reliable indoor or outdoor use
  • Tested to 350 psi and 2400 kPa ensuring durability under high-pressure conditions
  • Meets ADA compliance and UL S2466 rating for verified safety standards
  • Includes mounting hardware for quick surface installation on walls or ceilings

Universal Stopper for Fire Sprinkler Tools

The Universal Stopper is a protective cover designed to shield fire sprinkler heads from accidental activation or damage. It suits commercial and residential buildings where sprinkler systems require a physical barrier that meets safety codes. The unit is rated to S2466 and complies with ADA requirements for accessible installations. Operating temperatures range from -40 to 250 degrees Fahrenheit.

Mounting Hardware and Pressure Rating

The package includes mounting hardware so the stopper can be fixed to the designated surface without extra parts. Its polycarbonate construction has been tested up to 350 psi or 2400 Kpa, providing a strong seal against the Quickstop Fire Sprinkler Tool. The open-back design allows straightforward placement over existing sprinkler heads. Three colour options — clear, grey and red — help the device blend with different ceiling finishes.

Installers Needing Code-Compliant Sprinkler

This stopper fits projects that demand UL-listed S2466 certification and ADA compliance for indoor or outdoor use. It is not intended for buyers who need a sealed enclosure without an open back, nor for those requiring a different pressure rating or mounting method. Facilities without standard sprinkler heads compatible with the Quickstop tool should consider alternative protection.

How it compares

Measured against everything we stock in Home Protection & Access Devices, at today’s prices. Recalculated every night.

Price $112.99
Pricier than about 65% of the 1,270 comparable items (median $64.99).

Specifications

Product
Brand nameSAFETY TECHNOLOGY INTERNATIONAL
Product typeTraffic & Parking Lot

Questions about this item

Will the polycarbonate housing need replacement after long exposure to the -40 to 250 degree operating range?

The polycarbonate construction is rated for continuous use across the full -40 to 250 degree F range without scheduled replacement.

What pressure limit is reached first during sustained fire-sprinkler testing?

The stopper is tested up to 350 psi (2400 kPa), so that pressure ceiling is the first limit under sustained flow.

Does the UL S2466-rated unit generate noticeable heat or noise when mounted outdoors all day?

As a passive mechanical cover with no powered components, it produces no noise or heat during continuous outdoor operation.

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