This rubber valve requires no modification to your existing blowpipe. It is a device that, by design, stays closed giving a complete seal with no drying out. Although these valves have a long life, it is good to replace them every once in a while.
This rubber valve requires no modification to your existing blowpipe. It is a device that, by design, stays closed giving a complete seal with no drying out. Although these valves have a long life, it is good to replace them every once in a while.