I use Techni ice eskies as a mash tun since the GFC 2008 and just got bigger eskys and bigger pots over time. A mesh screen you could cut out yourself to suit the mash tun that slips into a protective silicone tube would be the way to go.
Just bought a 600x800 hop sock agian and throw that over my bazookas for next time.
Sodastream refill adapter dulux version is a bit ruff on the milling O-ring lasted about 2 seconds of first use torn apart. Milling is so sharp it tares the O-ring apart.
Adding new O-rings finally got it down pat using the real makoy SS bottle>>>>> Kicker just put some multi stand wire with a tail of about 20mm of insulation to feed to the centre of filler. Turn the 6KG bottle upside down and it's as good at full blast opening as your blocking the force forward valve.
We have changed the design of all the new Core 360 units so you do not chop up that o-ring in the new designed units. With that said on the older units this can be avoilded by just not unscrewing the thumb screw out too far. You only really need to unscrew the thumb screw to the point where the pin on the gas cylinder is no longer getting depressed.