This is stainless steel 316 32mm socket and 32mm/25mm or 32mm/20mm nipple set.
If purchased Cusader hose and 32mm couplings. This Socket and nipple set required for below solar pumps:
4"1000w screw solar pump and 4"500w screw solar pump both outlet are 25mm/F.
3" 210w and 3"500w screw solar pumps are 20mm/F outlet.
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