Aquascape 29108 Check Valve Assembly for AquaSurge Pumps<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Connects pump to pond plumbing</li><li>Helps prevent water from flowing back through the pump</li><li>Specially-designed collar allows for easy disconnect</li><li>For use with Signature Series 400/1000， Pondless Vault， and Micro Snorkel Vault filters， plus all AquaSurge pumps</li><li>Durable construction ensures years of trouble-free use</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41pmEf0xqNL.jpg" noproxy>