Two airstones are to install in two different locations

easy to move and very durable

and 8-hour settings

1/2" PVC pipe

strongest grating of any similar product and features a pump access door for easy pump removal/service

EasyPro Pro-Series™ Mini Skimmer For External Pumps feed-cl0-vertex aerator cooling fan Two airstones are to installInnovative skimmer designed for use with external pumps! Factory installed bulkhead fittings Pre plumbed for easy bottom drain connection, includes plug Design ensures all water goes through debris net Uses same debris net, lid and extension tube as PSMFB Pro Series skimmer Multiple skimmers can be plumbed to one pump, ideal for odd shaped ponds where one skimmer is not enough Max Flow Rate 75gpm 4500gph Weir 8" Dimensions 20"L x 15"W x 19"H