the 41-404 is a technical equivalent for several 271 series models including the 271D

Its durable housing is built to withstand the thermal cycling and humidity common in residential HVAC equipment applications

Designed with Class H insulation rated for temperatures up to 180°C (356°F)

With a robust weatherproof enclosure

The unit includes the sensor and the integrated mounting enclosure required for a standard exterior installation

ASCO 8210B21 Solenoid Valve Els PW 17895 the 41-404 is a technicalThe ASCO 8210B21 is a robust 2 way normally closed solenoid valve designed for high performance fluid control in demanding HVACR and industrial environments. This pilot operated solenoid valve features a durable brass body and reliable NBR seals, making it ideally suited for general service applications involving air and water. With a 3 8" NPT connection and a 1. 16 Cv flow coefficient, it maintains a consistent operating pressure differential of 5 to