Shallow Linear Aeration Compressors & Kits Option:9730 50w Kit The blue colour does show

The blue colour does show scratches

above the scale platform or on any vertical surface

six month warranty on probe

A variety of sizes are available and all are guaranteed to resist cracking

Shallow Linear Aeration Compressors & Kits Option:9730 50w Kit The blue colour does showThese air pumps are a powerful and reliable option for ponds, tanks and aquaponic beds up to 4 ft deep. **If air stones are more than 4' deep there will be undue wear on the diaphragms and will void the warranty. Aluminum covers and internal noise absorbing systems make these linear pumps surprisingly quiet and rugged. The pump housings are designed for use outdoors but are not waterproof so they need to be kept up out of puddles and with good