Which Trevoli Sentry System Is Right for You? Compare 102, 103, 202, and 203

If your home uses rainwater or bore water, you already know how important it is to keep that water safe and clean. The Trevoli Sentry Systems are whole-house water filters that use powerful UV disinfection and jumbo filters to protect every tap in your home.

There are four models in the range: Sentry 102, 103, 202, and 203. But what’s the difference between them — and which one should you choose?

Let’s break it down in simple terms.

Why Whole-House UV Filtration Matters in NZ

Many New Zealand homes collect water from the roof or draw from bores. This water can look clear but still contain bacteria like E. coli, Cryptosporidium, or Giardia. These can make your whānau sick.

UV filtration is one of the safest and most natural ways to kill these germs — with no chemicals or taste changes. When paired with good filters, UV gives you safe, fresh water straight from the tap.

What Is the Trevoli Sentry System?

The Trevoli Sentry units are all-in-one water filtration and UV systems. They come fully assembled, wall-mounted, and include:

• Jumbo filters to remove sediment, dirt, and fine particles
• A 48W UV lamp that kills bacteria and viruses
• A digital countdown timer (365 days)
• Pressure gauges for easy filter checks
• A quality stainless steel cover — included with all models

Trevoli Sentry 102 & 202 – Two-Stage Protection

Sentry 102 – Compact Whole-House Safety

The Sentry 102 uses 10" filters: a 20 micron pleated filter and a 1 micron polyspun filter before the UV light kills any remaining bugs. It’s compact and perfect for small to medium homes.

• Filter size: 10-inch
• Filter stages: 2 (20µm + 1µm)
• UV lamp: 48W
• Flow rate: 94 L/min @ 30mJ/cm²
• Includes cover: Yes

Sentry 202 – Same Filtration, Larger Filters

The 202 has the same two-stage setup as the 102, but with 20-inch filters for more capacity and fewer filter changes. It's better for larger households or homes with higher water use.

• Filter size: 20-inch
• Filter stages: 2 (same micron ratings as 102)
• UV lamp: 48W
• Includes cover: Yes

Trevoli Sentry 103 & 203 – Three-Stage Premium Protection

Sentry 103 – Adds Taste & Odour Protection

The Sentry 103 includes 10-inch filters and adds a third filter — a 5 micron carbon block — which helps remove chlorine, smells, and bad tastes. It’s ideal if you want your water to taste as good as it looks.

• Filter size: 10-inch
• Filter stages: 3 (20µm, 1µm, 5µm carbon)
• UV lamp: 48W
• Includes cover: Yes

Sentry 203 – The Top of the Range

The 203 uses the same three-stage setup as the 103 but with 20-inch filters. It’s ideal for rural properties, big families, or anyone who wants longer life between filter changes.

• Filter size: 20-inch
• Filter stages: 3 (same as 103)
• UV lamp: 48W
• Includes cover: Yes

Quick Comparison Table

Model	Filter Size	Filter Stages	UV Lamp	Flow Rate	Includes Cover	Best For
Sentry 102	10"	2 (20µm, 1µm)	48W	94 L/min	Yes	Small homes, compact install spaces
Sentry 103	10"	3 (+ 5µm carbon)	48W	94 L/min	Yes	Smaller homes, adds taste/odour removal
Sentry 202	20"	2 (same as 102)	48W	94 L/min	Yes	Homes needing higher filter capacity
Sentry 203	20"	3 (same as 103)	48W	94 L/min	Yes	High-use homes, rural setups

Which Model Is Best for Your Home?

Here’s how to choose based on filter size, space, and water needs:

• Need a smaller unit? Choose the Sentry 102 or 103 (uses 10" filters, compact design).
• Need more filtration power? Go for the Sentry 202 or 203 (uses 20" filters, higher capacity).
• Want better taste and smell? Choose a 3-stage model — the 103 or 203 (adds carbon filtration).
• Want a basic, reliable setup? The 102 or 202 will give strong UV protection and sediment removal.

FAQs

Q: What does the carbon filter do?
A: It removes bad tastes, odours, and some chlorine, making the water nicer to drink.

Q: How often do I change filters and UV lamps?
A: Filters should be changed every 6–12 months. The UV lamp lasts around 12 months or 9,000–10,000 hours.

Q: Can I install it outside?
A: Yes — all models include a stainless steel cover to protect the components.

Q: Is this good for rainwater tanks?
A: Absolutely. These systems are made to work with rainwater and bore water sources.

Final Thoughts — One System for Every Home

Every Trevoli Sentry system gives you peace of mind, powerful UV disinfection, and high-flow water filtration in one solid package. Whether you're after basic protection or extra taste control, there's a model that fits your home.

Explore the Trevoli Sentry range now and make your water safer today.