




Twin-Alternating · Continuous Soft Water
360 Twin Infinity Smart Water Softener
Two tanks, zero downtime. Soft water 24/7/365, so you never run out and never waste a grain of salt.
Model · Flow Rate: 163-SS-10 · 10 GPM
Sized & installed for families across nationwide
Engineered Advantage
Simply the Ultimate Water Softener
Every 360 Twin Infinity is built around premium technology most single-tank softeners simply can't match, from soft-water regeneration to a full-flow tank that keeps your pressure high and your salt use low.
True 24/7/365 Soft Water
Twin alternating tanks keep one in service while the other regenerates. You get uninterrupted soft water, even at 2 AM, when ordinary softeners quietly bypass to hard.
10% Cross-Linked Resin
Stronger and far more chlorine-resistant than standard 8% resin, for a longer lifespan, and backed by our Lifetime Warranty on tanks and resin.
Full-Flow Tank Design
Higher flow rates with minimal pressure drop, up to 30% less water sent to the drain, and reduced salt usage on every regeneration.
Smart 6-Cycle Valve
21st-century computer electronics on a 24-volt system regenerate precisely when needed, with no time-of-day to set, no salt wasted.
Why Twin-Tank Systems Exist
Most softeners use a single resin tank. During regeneration, usually around 2 AM, water bypasses the softener and turns hard. Twin-alternating systems switch tanks instead, so your soft water never stops. Ideal for night-shift workers, large families, high-iron water, or anyone who uses water at all hours.
Regenerates With Soft Water
The resin is always cleaned with already-softened water, keeping it cleaner, working better, and lasting longer than systems that regenerate with hard water.
Soft-Water Brine Fill
The brine tank fills with soft water too, preventing injector plugging and cutting down on service calls, and the system saves salt by regenerating only when it's actually needed.
Lifetime Warranty on Tanks & Resin
Our tanks and 10% cross-linked resin are covered for life, with the smart valve and electronics backed by a full 10-year warranty.
Built for Real Homes & Light Industry
From multi-bath, tankless-heater homes to light industrial applications and high-iron water, the Twin Infinity is engineered to keep up with demand.
Never Run Out of Soft Water Again
Talk to a 360 water expert, get your water tested free, and find the exact Twin Infinity model sized for your home.
Book My Free Water TestMore Reasons to Choose the Twin Infinity
01
No Downtime, Ever
Continuous soft water 24/7/365, so you never run out, even mid-regeneration.
02
Saves Salt & Water
Regenerates precisely when needed and drains up to 30% less water per cycle.
03
Less to Maintain
Only two moving parts in the water stream means fewer service calls and simpler upkeep.
04
Potassium-Compatible
Prefer potassium chloride? The Twin Infinity runs on it too. Just increase the dose by about 10%.
Efficiency That's Easier on the Planet
Less Salt, Less Waste
Demand-based regeneration means salt and water are only used when your household actually needs them.
Full-Flow Efficiency
The full-flow tank sends up to 30% less water to the drain on every regeneration cycle.
Built to Last
A Lifetime Warranty on tanks and resin means fewer replacements and less landfill over the life of your home.
| Model | 163-SS-10 | 163-SS-15 | 163-SS-20 | 163-SS-25 |
|---|---|---|---|---|
| Max Flow Rate | 10 GPM | 15 GPM | 20 GPM | 25 GPM |
| Grain Capacity | 35,000 | 53,000 | 70,000 | 88,000 |
| Resin per Tank | 1.00 cu ft | 1.50 cu ft | 2.00 cu ft | 2.50 cu ft |
| Resin Tank (ea.) | 9 × 48 | 10 × 54 | 12 × 52 | 13 × 54 |
| Brine Tank | 18 × 35 | 18 × 35 | 18 × 35 | 18 × 35 |
| Shipping Weight | 200 lbs | 260 lbs | 320 lbs | 400 lbs |
| Resin Type | 10% cross-linked (superior chlorine resistance), all models | |||
| Valve | 6-cycle smart valve · 24-volt electronics, all models | |||
| Bypass Valve | 1" stainless steel bypass valve included, all models | |||
| Salt Compatibility | Sodium chloride or potassium chloride (increase potassium dose ~10%) | |||
| Warranty | Valve & electronics: 10 years · Tanks & resin: Lifetime | |||
The 360 Twin Infinity ships with a 1" stainless steel bypass valve and is designed for professional installation. Both tanks connect to a single smart valve, so day-to-day upkeep is minimal - just keep the brine tank topped up with salt (or potassium chloride, dosed roughly 10% higher).
Because the system regenerates on demand using soft water, the resin and injector stay cleaner, which means fewer service calls over the system's life. There's no time-of-day setting to manage. The smart valve handles regeneration automatically based on your real water usage.
[INSTALL_LEAD_TIME & LOCAL SERVICE TERMS - confirm install scheduling, service area, and any labor terms before live]
Will I really have soft water during regeneration?
Yes. While one tank regenerates, the other stays in service - so soft water never stops, day or night.
How is this different from a single-tank softener?
Single-tank units bypass to hard water while they regenerate (usually around 2 AM). The Twin Infinity alternates tanks for true 24/7/365 soft water.
Can I use potassium instead of salt?
Yes, the system is fully compatible with potassium chloride. Just increase the dose by roughly 10%.
What's covered by the warranty?
The tanks and 10% cross-linked resin carry a Lifetime Warranty; the smart valve and electronics are covered for 10 years.
Which model do I need?
It depends on your flow rate and water hardness. Book a free consultation and we'll test your water and size it for you.
You May Also Like
Complete your whole-home water system with these 360 favorites.
Magna 5-Micron Pre-Filter
Posi-Seal filtration with zero bypass - the best insurance for your softener and household appliances. [Made in the USA - verify FTC substantiation before live]
Request a quote
View Product360 Dual-Stage Ultra Cartridge System
4.5"×20" sediment + carbon pre-filtration for whole-home protection ahead of your softener.
Request a quote
View Product360 Salt-Free Conditioner (SP3 NAC)
NAC anti-scale conditioning for spaces where salt isn't an option.
Request a quote
View ProductFrequently Bought Together
Customers who choose the Twin Infinity often add these.
Magna 5-Micron Pre-Filter
Extends the life of your softener and appliances with 100% filtration and zero bypass.
Request a quote
View Product360 Backwashing Iron & Sulfur Filter
Pair with the Twin Infinity for homes battling iron and sulfur before it reaches the softener.
Request a quote
View Product360 S5 Undersink RO (5-Stage)
Bottled-quality drinking water at the tap to finish your whole-home setup.
Request a quote
View ProductLet's Find Your Perfect Fit
Book a free water test and talk to a 360 expert. We'll measure your hardness, flow, and household needs, then match you to the exact Twin Infinity model that's right for your home.
Schedule My Free Water TestWater tips & exclusive offers
Join our list for seasonal maintenance reminders and members-only savings.

