Name: Round Sandwich J-Cups 2.0
Brand: REP Fitness
Rating: 4.93 (5 reviews)

Round Sandwich J-Cups 2.0

Fully protect the knurling on your barbell with the versatile, heavy-duty Round Sandwich J-cups 2.0. These cups, which are compatible with 4000 and 5000 Series power racks, feature plastic lining for total protection of your barbell and the power rack uprights. Plus, the hardware is on the side of the cups, so there’s no metal contact with your barbell. These J-cups are finished with a metallic black powder coat that’s resistant to chips and scratches to minimize rust and keep your home gym looking fresh for years. Round cups feature a super secure resting point, so your barbell won’t slide around or move when it’s racked.

Fits

3x3 (5/8 in or 1 in pins)

Capacity

1,000 lb

What is a Rack Attachment?

What rack attachments are

Rack attachments bolt or pin onto a power rack or squat stand to expand what it can do — J-cups and safety arms/straps (the essentials), plus dip bars, a landmine, a lat pulldown, weight-plate storage, roller J-cups, and more. They turn a rack into a whole gym.

Compatibility comes first

An attachment must match your rack’s upright size (2x2, 2x3, or 3x3) and hole pattern/hardware (e.g. 5/8-in vs 1-in holes, Westside spacing). Attachments are usually series-specific — a Monster Lite J-cup won’t fit an Echo upright — so confirm the fit before buying.

How it compares