Syringe filters and injection ports for making your own mushroom spawn jar lids.
Widely used for liquid culture, substrate jars, BRF jars
Select from 10x small or 5x large injection ports plus 5x filters.
Dimensions: Large - 20mm / 13mm
Small - 13mm / 7mm
Dispatched same/next working day.
Free 1st class postage and packaging.