Changing to lily pipes

[leo2016lion]

I’ve purchased an all pond solutions 1000ef external filter for a new tank I’m getting and was wondering which size clear lily pipes I would need?. The tubes are approx 20/22mm in width, I’m guessing their 22mm. It’s the first time using external filters and would like some info please


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[Luketendo]

I’ve purchased an all pond solutions 1000ef external filter for a new tank I’m getting and was wondering which size clear lily pipes I would need?. The tubes are approx 20/22mm in width, I’m guessing their 22mm. It’s the first time using external filters and would like some info please


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Lily pipes are usually done on the inside diameter.