Hose insert with blank neck/shaft as per ISO 8434-1 and DIN 3861. ECOVOS VA 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 stainless steel. Established in the market for many years as an original Voswinkel product.