Upper Echelon Products via Amazon has Magnetic Door Screen w/ Heavy Duty Mesh on sale $11.99. Shipping is free w/ Amazon Prime or on $25+
Product Description from Store
- Installs in an Instant: Our magnetic screen door comes with everything you need to install it quickly; black all metal thumbtacks, a large roll of hook and loop backing, plus video tutorial
- Fits Doorways Up to 38×82 Inches: Magnetic door screen works on fixed, sliding, metal or wood doors as long as they measure up to 38×82 inches. Important: Measure your door before ordering to ensure it fits