This O-ring is to seal the lid into the main body of the unit ~340mm diameter
Suits all OASE filtoclear fish pond filters
external diameter 39mm
3.8mm thick
To be fitted on the outside of the quartz sleeve on OASE filtoclears, model 3000, 6000, 11000 and 15000 and OASE filtral 2500 and 5000
Available on backorder
Available on backorder

