Home Amazon Goldbox deals Amazon: Lee’s 15/20 Original Undergravel Filter, 12-Inch by 24-Inch Amazon Goldbox deals Amazon: Lee’s 15/20 Original Undergravel Filter, 12-Inch by 24-Inch By ARCOM - 18 February 2017 313 0 SHARE Facebook Twitter Amazon Goldbox Deal: List Price: $18.99 Deal Price: $14.28 You Save: $4.71 (25%) Original Undergravel Filter 12-Inch 24-Inch Expires Mar 2, 2017