DOP20BPX066GPO Loop-Saw Chain. 20 Series MicroChisel® .325 Pitch, .050 Gauge, 66 Drive Links. Fits Poulan/Poulan Pro model 255, 2700, 2750, 2775, 2800, 285, 2900, 295, 3000, 305, 3050, 306 SA, 310, 3100, 315, 325, 3300, 335, 335 Predator, 336, 4600, 4620, 4620 AV, 4620 AVX, Farm Hand(2900) Chain saws. Replaces 33SL066G.