Phyto Plus Aquarium co2 scrubber oxygen reactor reef tank media medical grade colour change empty 300ml cartridge

I've bought 2 medium size scrubbers and I have attempted to connect them to an air pump. When they arrived they were missing the connectors that are shown in the ad at both ends. I've managed to get them somewhere else but because the way the scrubber is built it leaks almost all the air before it has a chance to get in the aquarium. I can't say anything about the media yet until a I find a way to seal the scrubber and check if indeed my pH is increasing.