R450431/V, 21w3kv190, 21w4kv250, 21w3zv190, 21w4zv250, 21w3kv90-MR, 21w4kv250-MR, 21WN5Kv190, 21WN6Kv250,
membrana ode d.59,9mm in viton valvole 3/4 e 1", R450431/V, 21w3kv190, 21w4kv250, 21w3zv190, 21w4zv250, 21w3kv90-MR, 21w4kv250-MR, 21WN5Kv190, 21WN6Kv250,