HydroTAC Whole-Home System – Water Filter & Conditioner
HydroTAC Whole-Home System – Water Filter & Conditioner
Water softener component designed to regulate operation and support reliable hardness reduction performance, helping address chlorine taste & odor, iron (9" x 9", 10 GPM).
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HydroTAC Whole-Home System – Water Filter & Conditioner
The HydroTAC Whole-Home Water Filter & Conditioner is a compact whole-home water filtration and conditioning system designed to help reduce scale buildup, chlorine, sediment, and other common water contaminants without the use of salt or harsh chemicals.
Using advanced Template Assisted Crystallization (TAC®) technology combined with high-flow activated carbon filtration, the HydroTAC® system helps protect plumbing, fixtures, appliances, and water heaters while improving overall water quality throughout your home.
Unlike traditional salt-based softeners, HydroTAC® conditions water without adding sodium or producing wastewater, making it a low-maintenance and environmentally friendly alternative.
Key Features
• Salt-free water conditioning technology
• Helps reduce and prevent scale buildup
• Dual-stage high-flow filtration system
• Activated carbon filtration for chlorine and chemical reduction
• Helps reduce PFAS compounds
• No salt, chemicals, or wastewater required
• Leaves beneficial minerals in the water
• Compact whole-home system design
• Low-maintenance operation with long filter life
Advanced TAC® Scale Prevention Technology
HydroTAC® uses proven Template Assisted Crystallization (TAC®) technology to convert hardness minerals into harmless microscopic crystals that are less likely to adhere to plumbing surfaces.
Independent testing has shown HydroTAC® can help reduce and prevent up to 99.6% of scale buildup while also helping remove existing scale deposits over time.
Dual-Stage Whole Home Filtration
The integrated dual-stage filtration system combines TAC® conditioning with a high-performance radial flow activated carbon block filter to help reduce:
• Chlorine taste and odor
• Sediment
• PFAS compounds
• Other common chemical contaminants
Activated carbon treatment is one of the most widely studied and proven technologies for PFAS reduction.
Benefits of HydroTAC®
• No salt or corrosive chemicals required
• No wastewater during operation
• Helps extend the life of appliances and plumbing
• Leaves healthy minerals in the water
• Helps reduce existing scale deposits
• Lower maintenance requirements compared to traditional softeners
• Filter life up to 3 years under normal conditions
What’s Included
• Housing and head assembly
• TAC® scale prevention filter cartridge
• Radial flow carbon block filter cartridge
• Inlet/outlet red adapter locking pins (2)
• 1" NPT inlet/outlet adapters (2)
• Outlet connector
• Multifunction tool
• System mounting bracket
• Pressure relief valve
Specifications
• Product Number: WD 7100638
• Flow Rate: Maximum 10 GPM (37.8 LPM)
• Working Temperature: 40°F – 104°F (5°C – 40°C)
• Working Pressure: 10 – 90 psi
• Recommended Pressure Limiting Valve: Required above 70 psi
• Installation Environment: Indoor use recommended
• Dimensions: 9" D × 9" W × 19.2" H
• Weight: 16.6 lbs (7.5 kg)
Contaminants Reduced
• Scale buildup
• Sediment
• Chlorine taste and odor
• PFAS compounds
• Other chemical contaminants
Conditions for Use
• pH: 6.5 – 8.5
• Maximum Hardness: 75 GPG (below 25 GPG ideal)
• Chlorine: Less than 3 ppm
• Ferrous Iron: ≤ 0.3 mg/L
• Manganese: ≤ 0.05 mg/L
• Copper: ≤ 1.3 mg/L
• Oil & Phosphates: Must be removed prior to installation
• Hydrogen Sulfide: Must be removed prior to installation
Influent water conditions must not exceed these levels.
Replacement Filters
• SMF 7100639
• SMF 7100640

Real People. Real Support.
We’re a small team of water filtration specialists who care about doing things the right way.
Every product on our site has been chosen because it works, not because it’s trendy or pushed by a supplier.
If you ever need help, you’ll talk to someone who actually understands water systems and wants to make this easier for you.
FAQs
How do I cancel or edit an order?
How do I cancel or edit an order?
Unfortunately, we cannot cancel orders due to a change of mind. However, we understand that mistakes happen. If you need to edit your order information, such as the delivery address or contact number, please contact our customer service as soon as possible.
Here’s what you can do:
- Contact our customer service via email address, or Live Chat.
- Have your order number ready when contacting customer service.
- We cannot guarantee changes to orders after 24 hours of placement. This is because orders may be processed once received
How can I track my order?
How can I track my order?
You can track your order by checking the shipping confirmation email, which contains a tracking number and a link to the courier's website. Alternatively, log in to your account on our website, navigate to "My Orders," and click on the tracking link provided for your order.
What if there is a problem with my order?
What if there is a problem with my order?
If there is an issue with your order, please contact our customer service team as soon as possible. You can reach us via email, phone, or through the contact form on our website. Provide your order number and a brief description of the problem so we can assist you quickly.
I didn't receive all off my order?
I didn't receive all off my order?
If part of your order is missing, please check the shipping confirmation email to see if the items were sent separately. If all items should have arrived together or if you have concerns, contact our customer service team with your order number. We’ll investigate and resolve the issue promptly.

