Description

Darlly 40103 hot tub filter that fits inside the larger outer filter.

Has a 2  1/4″ hole running all the way through sometimes referred to as a bobbin filter

compatible with Pleatco PMA10 and PMA45 filters used on some master spa models.

Compatible with and can replace.

Unicel C-3310AM

Please look at the photos ( for illustration only) and measurements closely and if you are in any doubt please call us for assistance in choosing your filter

• Diameter: 4″ (100 mm)
• Length: 7″ (170mm)
• Bottom Hole: 2 1/4″ (57mm)
• Bottom
• Hole: 2 1/4″ (57mm)
• Filtration size: 10 sqft

Used in some of these spas.

Master Spas