Microppose Original Synthetic Polyfil 2.5" Monotub Adhesive Filter Disks (6-Pack)

These filters are sturdy and adhere well even to thin plastic. Using an exacto knife, I cut 2" circular holes in the plastic sides of a Magoog still air mushroom grow box and then affixed a filter to each hole. The filters adhered tightly and appear to be functioning nicely in providing more air flow through the box.

They stick really well and work great to cover your larger monotub holes. I use them to cover 2 inch holes. Help to let fresh air in but not bacteria and things that can cause contamination issues in your monotub. They also help to not lose your humidity in your tub.

Perfect thanks

Easy to use, strong adhesive, haven't had any contamination issues when using.

Size is perfect and easy to use.

These adhere very well and come off the sheet easily. The filters appear to be good quality. My mono tubs are fruiting well.

Sometimes the glue peels. But gentle press it back and works good

I recently ordered these filter disks, and they work just as expected—sturdy and effective. They’ve been doing the job perfectly, and I’m really happy with them.But what really made this purchase stand out was the seller. They were fantastic from start to finish—quick to respond to my issues, super helpful and responsive, and they made sure the disks arrived on time and in great shape. It’s rare to come across service like this.If you’re on the fence about buying these, go for it. The product is solid, and you’re in good hands with this seller. I’m definitely coming back for more when I need them!