SUPCO L190-20 SPST Limit Control MFG# SHL508 3.12″ Insert LP Gas HVAC Furnace

SKU: SHL508

Weight	1.5 lbs
Dimensions	8 × 8 × 8 in

$39.48

In stock — available to order.

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Quantity	Unit price	Saving
1–4	$39.48	0%
5–9	$37.51	5%
10+	$35.53	10%

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SUPCO L190-20 SPST Limit Control MFG# SHL508 3.12" Insert LP Gas HVAC Furnace

Specifications & product details

Overview

SUPCO L190-20 SPST Extended Insertion Limit Control – MFG# SHL508This industrial-grade limit control is engineered for HVAC and gas heating systems including LP gas, propane, and natural gas applications. Designed to prevent overheating, it opens at 190°F and automatically resets at 170°F, ensuring safe operation for gas furnaces and forced air units.

Key specifications include a 3.12-inch copper insertion probe and a 1.88" x 2.8" board. The SPST (Single Pole, Single Throw) contact configuration provides reliable performance and quick installation.

Ideal for

Furnace overheat protectionLP or natural gas heating systemsReplacement part for OEM furnace boards

Features

Brand: SUPCO
Model: L190-20 SPSTManufacturer Number: MFG# SHL508Insertion
Length: 3.12”Temperature Ratings: 190°F Open / 170°F Close
Compatible with: Rego, Emerson, Honeywell gas control systems
Upgrade or replace your HVAC gas limit control with this dependable component from SUPCO, a trusted name in industrial-grade gas system parts.

Product details

Part / SKU	SHL508

Package includes

SUPCO L190-20 SPST Limit Control MFG# SHL508 3.12" Insert LP Gas HVAC Furnace

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

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