Filter Subscription For Sterra Moon from $55.00 /per or 4x $13.75 w/ or 3x $18.33 w/ Super Sale! ending in: Get air filter replacement for your Sterra Moon every 6 months. The most convenient way to change your filter. This is a filter delivery subscription for your Sterra Moon. You are billed automatically every 6 months Product variants Default Title Add to Cart Couldn't load pickup availability Refresh