Ceramic filter cartridges

I am selling the Eheim and Aquael filters listed below. The Eheim filters have been in the filter for about three-quarters of a year, they are properly rinsed and dried (does not affect quality). The Aquael filters have never been used, only repackaged (the original packaging was prone to breaking). The reason for selling is the acquisition of a larger aquarium with partition filtration. The price for everything is 1000 CZK including shipping when paid in advance (Zásilkovna, Balíkovna). Fair and quick dealings = discount; for cash on delivery, at least the shipping cost is required in advance to the account. Items can also be purchased separately + shipping. The ad is valid until deleted.

Eheim SubstratPro 1l - 250 CZK (3x)
Eheim Mech 1l - 100 CZK (1x)
Eheim bioMech 800ml - 150 CZK (1x, purchased as 1l)
Aquael BioCeraMax 2l - 100 CZK (1x)