Fiberglass Extensions for Blue Thumb Large Pump Canyon™ Liquid 5” silicone rubber-covered steel roller

5” silicone rubber-covered steel roller with a 4" wooden handle

a double dosage can be used

Safe for use with ornamental fish or fish raised for human consumption

See photos

Fiberglass Extensions for Blue Thumb Large Pump Canyon™ Liquid 5” silicone rubber-covered steel rollerThese fiberglass extensions for the Blue Thumb (formerly PondBuilder) Elite Large Pump Canyon are constructed in both hoop and helical wrapped fiberglass, providing maximum strength and rigidity. Only for use with Blue Thumb Large Pump Canyon ALL fiberglass extensions require split lid SKU Description BP00405 Fiberglass Extension, 18" x 18" BP00406 Fiberglass Extension, 18" x 24" BP00407 Fiberglass Extension, 18" x 36" BP00417* Fiberglass Extension,