For in-store pickup only and with stock varying by ZIP code, Sears offers the Oregon 20" 20BPX Pro-Guard Chain Saw Chain, model no. H78, for $4.47. That's the lowest price we could find by $16. It works with a variety of manufacturers, including Echo, Homelite, John Deere, Poulan, and Craftsman.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.