Apollo 1060534 Safety Relief Valve Bronze, FNPT, FNPT, 1 in Inlet Size, 1 in Outlet Size, 15 to 160 psi 32MC37 Item Ear Plugs Ear Plug Item Ear Plugs Ear Plug Shape Bullet Disposable Reusable Disposable Cord Options Uncorded Noise Reduction Rating NRR 33 dB Pairs Per Package 200 Insertion Method Roll Down Color Bright Green Metal Detectable No Series Goin' Green(R) Standards ANSI S3 Electric Heating Temperature Control Range 50 Degrees to 90 Degrees F Number of Cooling Stages 1 Includes Positive Off No System Settings Cool Heat Off Housing Color White Temperature Differential 2 Degrees to 4 Degrees F Number of Heating Stages 1 Mounting Direction Vertical Minimum Control Temperature 50 Degrees F Stages 1H 1C Differential Type Fixed Changeover Type Manual Switch Type Action SPDT Inlet Type FNPT Test Lever Yes