Has 1/2 BSP thread and also adapters to 12mm hose barb.
The difference between just the pulsation dampener and the accumulaor/pulsation dampener is in the way they are made, therefore operate. The pulsation dampener just relies on the water compressing the standard air pressure within the unit – without a diaphragm. The accumulators have the air inside under pressure in the start up stage, so in effect this gives a longer time (more water flow) between stop and start of pump for the same sized unit.
12V DC, 24V DC