GPG series water filter is an updated product developed on the basis of sG type (Y type) products, which has the advantages of Y-type old products: small size, fine filter eyes, less resistance, easy installation, strong and durable. Added with automatic rinsing to remove dirt. Unlike Y-shaped old products, which need to be shut down, open the lid, and manually remove the pollution. This makes the automatic backwash sewage filter the only filter that can be filtered using low-quality water.