This is what I use
https://www.ebay.co.uk/itm/364518029203
Works fine, price is right, think the only difference between it and proper inserts is that they have grooves for sealant maybe? Never had an issue.
@dglshrn started
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This is what I use
https://www.ebay.co.uk/itm/364518029203
Works fine, price is right, think the only difference between it and proper inserts is that they have grooves for sealant maybe? Never had an issue.