Intermatic - T171 - 24-Hour Mechanical Time Switch with Skip-a-Day, 120 VAC, Indoor Metal Enclosure 21074603 replacement diaphragm assembly is for

replacement diaphragm assembly is for the Irritrol 100 series 1" valve

see packing nut stamp date to determine

Manual internal bleed operates the valve without allowing water into the valve box

6 bar) or greater

Intermatic - T171 - 24-Hour Mechanical Time Switch with Skip-a-Day, 120 VAC, Indoor Metal Enclosure 21074603 replacement diaphragm assembly is forInstall Manual Intermatic T171 24 Hour Mechanical Time Switch with Skip a Day, 120 VAC, 60Hz, SPST, Indoor Metal Enclosure, 1 Hour Interval Similar to the T100 Series, these time switches can also handle electrical loads up to 40 A per pole. The T170 Series Time Switches allow for up to 10 ON OFF settings per day, but give you the additional capability of skipping days in which the loads may not be needed. Each time switch will come with one set of ON