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Aquamaster and WaterBoss Injector Assembly Part 93504 | Water eStore


Water Softener Injector Assembly 93504 Replacement for Aquamaster or WaterBoss - Pro 180, Pro Plus 380, AMS 700, 900 or 950. 

✔️An easy fix for your water softener when it needs to have the injector assembly.  Click the "How to Install" image above to see a video on how to replace the injector assembly on your Aquamaster or WaterBoss water softener. If the trouble shooting indicates the injector assembly is the cause, order it here.  Easy to replace, see link to manual below and video above.

Aquamaster Water Softener Manual

WaterBoss Water Softener Manual

PRT 93504

Customer Reviews

Based on 16 reviews
Bob Thompson (Las Vegas, US)

While the item was just fine, I'm not sure if there was anything wrong with the one that is in the softener as I ordered this as a "just in case". Replacing the injector assembly didn't fix the problem I was having with the brine tank overfilling and not getting any soft water. I may return this assembly shortly since it was expensive for such a little part ($41).

Tom Hensen (Shakopee, US)
Water Boss Parts

Easy to order, arrived on time and products fit and worked as described

kevin winkle (Los Angeles, US)
crushed delivery

when UPS made its delivery the box was smashed and the parts where destroyed. I sent in a picture of the crushed box, do not crush sticker, fragile sticker, and the destroyed part to the water store. They sent a new part immediately. good job!

John Gitre (Phoenix, US)
Works great now.

thx direction Vids works as design. Works great. Thank you!

Nathan Fritz (Mount Vernon, US)
Correct parts except one

All of the internal parts were correct and installed okay. Seemed like the cap threads were a different pitch or some other issue as it did not want to screw onto the cover threads of the body without using pliers, and what seemed to me to be too much force. I ended up reusing the original cap with the new O-Ring which screwed on by hand and then snugged it tight with pliers. No other issues noted.

About Aquamaster

AquaMaster is a Canadian company that specializes in providing water treatment solutions for residential, commercial, and industrial applications. The company's mission is to provide high-quality and reliable water treatment systems to its customers.

One of the main products offered by AquaMaster is its line of water filtration systems. These systems are designed to remove a wide range of contaminants from the water, including sediment, chlorine, and heavy metals. The filters used in these systems are made of high-quality materials and are designed to last for a long time, making them a cost-effective solution for clean water.

AquaMaster also offers a wide range of replacement filters and cartridges for its water filtration systems. These filters are designed to remove specific contaminants and are available in various sizes and micron ratings to suit the needs of the customer.

Another popular product offered by AquaMaster is its line of water softeners. These systems are designed to remove hard water minerals, such as calcium and magnesium, from the water. This can provide a number of benefits, including extending the life of appliances and improving the taste and quality of the water.

The company also provides a variety of educational resources on its website, including articles and guides on water treatment and filtration, as well as the latest news and developments in the water industry.

In addition to its products, AquaMaster is committed to providing excellent customer service and technical support. The company has a team of experts who are available to answer any questions customers may have and to provide assistance with the installation and maintenance of the systems.

Overall, AquaMaster is a Canadian company that is dedicated to providing high-quality water treatment solutions for homes and businesses. The company's wide range of products and services, as well as its commitment to education and customer service, make it a top choice for those looking to improve the quality of their water.

See all from Aquamaster

Shipping Policy

We offer FREE Shipping anywhere in Canada. Once your order is placed, we process it the next business day and ship via ground transportation. In very remote locations, whenever the shipping costs become prohibitive we reserve the right to either cancel the order or ask that you contribute to the shipping costs, it's up to you. Your items may take anywhere from a few days up to a few weeks to arrive. If you have any special shipping requirements, like requiring a signature at time of delivery, please leave a message in the "Special instructions for seller" section while checking out. If you order multiple products they may not all arrive at the same time as we ship from multiple warehouses and each item will be shipped directly to you. If no one is home when your order is delivered it will be left for you but we cannot assume responsibility for your order once it has been dropped off. If you have any questions please contact us at

Thank you for your order, we appreciate your business!


Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer.

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at

Sale items
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at and send your item to: The Water Store 1004 King Street Midland Ontario CA L4R0B8.

To return your product, you should mail your product to: The Water Store 1004 King Street Midland Ontario CA L4R0B8

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.