Sears offers two Gladiator 48" GearTrack Heavy-Duty Channels, model no. GAWC041PZY, for $12.59. (Add two to your cart to see this price.) Opt for in-store pickup to dodge the $10.75 shipping fee. That's a buck under our April mention and the lowest per-unit price that we've seen. (It's also a current best by $11.) Each channel measures 48x6" and holds up to 75 lbs. per linear foot.

Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.

Update: The price has since risen slightly to $13.98.