Banjo inserts for metric and imperial banjo bolts. ECOVOS system from STAUFF in nominal sizes up to DN 51 / 2 inch / Dash 32. For manufacturing hose fittings for connecting 1SN, 2SN, 2ST, 1SC, 1SN-K, 2SN-K, 2TE, 3TE, 4SH, 4SP, SCP3 hoses as per EN 853, 854, 856 and 857 with only one insert profile. Made of carbon steel with STAUFF zinc/nickel surface coating for reliable corrosion protection. Established in the market for many years as an original Voswinkel product.