Adapter Union Socket ISO 228 Female A fast, reliable, and leak-proof solution for compressed air with all materials including a 10-year guarantee. Airnet Union Socket ISO 228 Female D20 £62.60 Ex. VAT Add to basket Adaptor Union Socket ISO 228 Female D25 £99.78 Ex. VAT Add to basket Adaptor Union Socket ISO 228 Female D40 £122.05 Ex. VAT Add to basket