The charles austen service kit for the et 400
500 Air pump range is a wise investment. Charles austen recommends that your et pump be serviced every 18 months. The kit includes 4 x diaphragms and 1 x filter and 16 x valves. This kit will fit the et range of pumps from et400 to et500. Note 2 service kits are required for the et400
500
The charles austen service kit for the et 400
500 Air pump range is a wise investment. Charles austen recommends that your et pump be
