What are screw cup washers used for?

Due to its incredibly quick and effective cup rinsing, specialized glass rinsers have been a mainstay in commercial kitchens and bars for a long time. With their do-it-yourself-friendly Delta Glass Rinser, award-winning faucet maker Delta has brought the practical bottle and cup washer to residential homes.

Is the lumbuy cup washer, however, worthwhile? And is installing a glass rinser in a kitchen sink that simple? You should be aware of the newest kitchen trend that is becoming popular in households.

What are rinsers for glass?

Bottles and cups are thoroughly cleaned using kitchen sink glass rinsers, sometimes referred to as bar glass rinsers or cup washers, which fire high-pressure water jets into the drinkware while it is upside-down.

Gravity and quick, intense rinsing work together to wipe out nooks and crannies and remove even the toughest stains and residue from your cups.

Any available countertop or sink holes, such as one used for soap dispensers or hot and cold water dispensers, can be used to install the low-profile kitchen appliance.

How do glass washers function?

Simply place your drinkware over the installed cup washer and push down on the top of the cup to turn on the water jets to activate a glass rinser. To reduce splashing, the majority of cup washers are made to drain directly into your sink.

The kitchen accessory, which typically replaces your hot or cold water dispenser, kitchen spray, or other suitable countertop or sinks hole, is installed next to your kitchen or bar sink faucet.

DIY-friendly cup washers don’t need a new water supply line, like the Delta Glass Rinser. A tee adapter, which is typically supplied with the purchase of the device, instead provides a second water outlet to your sink’s water supply valve.


  • Can Be Installed on Most Sinks
  • Prevents Water Splashing
  • Easy to Install
  • Rinses Most Standard Drinkware
  • Excellent for cleaning smoothie cups and water bottles


  • Not All Cup Sizes Can Fit
  • Needs Availability Installation Hole.
  • Your sink’s stainless steel finish might not match it.

Leading faucet maker Delta has received recognition for its cutting-edge faucet products, such as its touchless kitchen faucet and voice control technologies.

Delta has introduced industrial glass cleaner into regular households to improve kitchen functionality. A few people have voiced dissatisfaction with the finish and size restrictions, but most reviews have been favorable.


The streamlined, low-profile kitchen item is only 1.5 inches tall and 4 inches broad when fitted next to your kitchen or bar sink faucet. There are several finishes available, including stainless steel and chrome.

The primary design criticism is that, in some people’s eyes, the stainless steel finish doesn’t quite match other stainless steel equipment. Customers can purchase the matte black glass rinser and other finishes if they are worried about clashing finishes, even though this is a natural occurrence when buying any stainless steel appliance (each brand has its unique formula and variance).

You won’t need to be concerned about water splashing or spilling over your countertop because the rinser is made to drain water directly into your sink. To prevent unintentional spraying when not in use, every order comes with a matching cover.


With a minimum glass opening size of 1.5 inches and a maximum size of 3.5 inches, the rinser is made to fit the majority of drinkware. Many people add a little soap to the containers so they may immediately wash their drinkware.

Some people have, however, complained that some of their most frequently used cups, like coffee cups with wide brims, were too large for the rinser.

TIP: Determine the diameter of the glasses you use the most before making a purchase. Measure your smoothie and coffee cups, in particular.


The easy installation of the Delta Glass Rinser is a significant benefit. You don’t need a Delta kitchen faucet or sink to utilize this accessory; it can be placed in most kitchen sinks.

To attach your rinser, all you need is a spare installation hole next to your faucet. This makes this product compatible with sinks or single-handle faucets that include sprayer or soap dispenser holes. You might need to drill another hole if you don’t have a spare installation hole.

About the water supply connection, Delta offers a simple-to-install tee adapter and 42-inch supply line that connect to your current faucet water supply and divert water to the rinser while in use.

Users have the option of connecting their rinser to hot or cold water.

A glass rinser: Is it worthwhile?

The Delta glass rinser, which costs just a little over $200, is an easy and reasonably priced kitchen addition that produces startlingly effective results.

The glass rinser is a huge time saver if you frequently make smoothies, drink coffee (or any other beverage that stains glasses), or need to wash baby bottles or bottles with narrow rims. Imagine not having to soak smoothie cups or discover unexpected food and debris in your drinks!

If you have glassware with a diameter larger than 3.5 inches, this glass rinser might not be the ideal choice.

The glass rinser may appear superfluous if you already have a strong sprayer, like a pre-rinse kitchen faucet.

Even for those who have high-pressure sprayers, the Delta Glass Rinser is a great option because of its all-around ease, reliability, strong rinsing, and splash-free performance.

According to a long-time user and coffee roaster, the product’s most amazing feature is not the water pressure itself but the addition of gravity. When the glass is washed upside down, the food particles are ejected during the rinse process rather than swirling around and landing back on the glass. Over time, the effective technique allows you to conserve water!

How is a cup rinser installed?

Depending on the cup rinser you buy, installation guidelines may change. The overall assembly, however, needs a hole that may be used for installation by your faucet as well as a tee adapter and supply line to connect to the water supply. Most likely, your purchase includes the last two items.

Additionally, you should make sure that the installation hole you have is far enough from your faucet (the rinser is 4 inches in diameter). When washing cups, make sure you have enough height clearance above the glass rinser to prevent your cups from slamming into cabinet doors or window seals.

Here is a quick guide on installing the Delta Glass Rinser.

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