Remington Chlorine-Free Sun Shock Replacement Copper Anode More details on anode visit www.solarionizer.com LIMITED TIME OFFER - FREE: 1 - Wingscrews - Thread size: Metric size 6 Anode: 1 copper-silver alloy anode Anode dimensions are: 4.33" x 0.98" - 1.0 lb - M6 ionizer screw inlet & M8 basket screw inlet. NOT COMPATIBLE WITH Floatron Solar Ionizer units. Floatron uses 1/4" ionizer thread and 5/16 wing screw for basket.