Tucker 4" Filter Cartridge

What it is

The Tucker 20051 4" x 21" Refillable DI Filter Cartridge is a refillable DI filter cartridge for pure-water window cleaning systems with 4" x 21" housings. It fits the 4" x 21" housings from many different manufacturers and holds 1/10 ft³ of DI resin.

How you fill it

You fill it with Tucker virgin bulk DI resin, sold in 1 ft³ and 1/2 ft³ resealable buckets, which Tucker says saves on filter cost compared with buying pre-filled cartridges. The Funnel for DI Resin Refill makes the job tidier. When you refill it yourself, Tucker's manuals say to pack the resin bed tightly into the cartridge so no air gaps let water slip around the media.

Fit and change

Tucker's catalog lists the 20051 as the refillable DI filter for the 21" Skid Mount system. Check your output with a TDS meter: Tucker's manuals say spotting on glass begins once TDS rises above 10 ppm, which is when to refill.

• Size4" x 21"
• Resin capacity1/10 ft³
• TypeRefillable
• Fits4" x 21" housings

Free shipping within the lower 48 states on orders of $101 or more; orders under $101 ship for a flat $15. Orders are processed in 1 to 2 business days, and Tucker ships most orders within 2 business days after that from Castle Rock, Colorado, by FedEx Ground, or by LTL freight for items too large for parcel. Production times or low stock can delay an order, and we'll email you if they do. You'll get tracking by email as soon as it leaves the warehouse. For Alaska or Hawaii, contact us before you order.

Inspect the packaging and the product before you sign. Note any damage or shortage on the delivery receipt, then email photos to support@mycleansupplies.com within 48 hours of delivery so the freight claim can be filed. Damage reported after 48 hours can't be claimed.

Unused Tucker equipment in its original packaging can be returned within 21 days of delivery. Ask us for a return authorization before you ship. Returns that aren't due to a defect carry Tucker's 15% restocking fee, you pay the return shipping, the shipping we paid to deliver your order is deducted from the refund, and payment processing fees are not refunded. Opened filters, membranes and resin and special-order items are final sale, and used items and returns damaged in transit back can't be accepted.

Tucker doesn't warrant the 4" x 21" Refillable DI Filter Cartridge, because filters, RO membranes, DI resin and other filtration components are consumables. Contact us if it arrives damaged or defective.

Warranty claims. Contact us with your order number, model and photos of the fault. We file the claim with Tucker, who may ask for the part back. Approved replacement parts are free; the shipping on them is not, unless the item arrived defective.

Tucker® is the water-fed pole and brush line of Reach Higher Ground (RHG), the Castle Rock, Colorado company that window cleaner Shawn Gavin founded in 2006 to build better pure-water equipment. RHG built its first spot-free system in 2007 and acquired Tucker® in 2015, and today designs, assembles and supports the whole range from its Colorado facility: RO/DI carts and tank systems, carbon fiber and hybrid poles, water-fed brushes and the accessories that tie them together.

The 20051 is the refillable partner of the 4" x 21" Pre-Filled DI Filter Cartridge. Tucker also makes refillable cartridges in 4" x 30" (holds 1/5 ft³) and 4" x 40", plus the empty 4.5" x 10" Refillable DI Filter for the Rival and Fill N Go.