Filter replacement watch
Know when filters are due — and when prices creep
What should you know before buying Know when filters are due — and when prices creep?
Before buying, use this page as a shortlist and verify the final details on Amazon. Prioritize fit, current price, stock, seller, return window, warranty, and recent buyer feedback over one headline rating. That final check helps avoid stale prices, mismatched variants, and avoidable returns.
We track HVAC, fridge, pitcher, and whole-home filters on true replacement cost — not just sticker price — and flag bulk swaps that beat convenience-store singles.
- No retailer sponsorships
- Weekly price checks
- 15+ articles tracked
- Staple price creep
- 18%
- Annual overspend
- $420
- Products tracked
- 18+
We track filters, HVAC parts, and household consumables on repeat — and flag replacement markup early.
- Staple price creep
- 18%
- Annual overspend
- $420
- Products tracked
- 18+
- Independent watchdog
- Weekly price checks
- No retailer sponsorships
Editorial standards
"Independent editorial · No brand sponsorships · We name the filter, we name the cheaper cycle"How we work →
Start here
Pillars we track every week.
Each pillar is its own watchlist: explainer → tracked products → cheaper swap. Three clicks to the answer.
01 · Bottled
Bottled Water vs. Filter Pitchers: The 2026 Economics of Hydration
Bottled water prices have surged by 20% since 2024. We break down the true cost of hydration, revealing why a $30 filter pitcher pays for itself in just 6 weeks and which filters are actually the cheapest per gallon.
1 related articles →02 · The
The Grocery Staples Unit Price Watch Guide: Coffee, Eggs, and Milk
Coffee, eggs, and milk are the "big three" of grocery price creep. Here's how to calculate the real cost per ounce and when bulk club pricing actually beats the local supermarket.
7 related articles →03 · Laundry
Laundry Detergent Cost Per Load: The Definitive 2026 Price Comparison Guide
Most households overspend on laundry by $150+ per year simply by choosing the wrong detergent format. We break down the math on pods vs. liquid vs. powder and reveal the hidden costs of overdosing.
8 related articles →04 · MERV
MERV Ratings Explained (Without the Sales Pitch)
Plain-language MERV guide: what each tier actually catches, when MERV 13 is worth it, and when a high-MERV filter starves your blower.
2 related articles →Latest from the desk
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pets
How Often to Change Your HVAC Filter When You Have Pets
merv
MERV 11 vs MERV 13 for Allergies — What We Measured
Editorial
How to Refill Glass Jars Safely for Household Products
Editorial
How to Refill Household Cleaners Without Sacrificing Effectiveness
Editorial
Concentrates for Cleaning: Cost, Efficiency, and Environmental Benefits
laundry detergent price increase
Laundry Detergent: Tracking the Hidden Price Increases
Tracked this week
Three products, three price tiers, one verdict.
We watch the price history. Below: the cheapest defensible answer, the smart-buy middle, and the splurge at each price point.
How we research: price-history checks via Keepa, cross-retailer verification weekly, raw data on the methodology page.
See the rig →
About the desk
Why FilterCycle exists
HVAC, fridge, and water filters — tracked by replacement cost.
Articles published
15
All bylined, dated, reviewed quarterly.
Products tracked
18
Independent watchlist — every price logged.
In-depth guides
11
Pillar topics, updated as the field changes.
From our family of brands · Sponsored
Phone Cases For All — 50,000+ designs · ships in 2 days 10% off your first case; code FIRST15ALL.The FilterCycle weekly
FilterCycle weekly
One shrinkflation alert, one smarter swap, one price check — every week. No spam.
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Standards, disclosures, and how we make money.
Affiliate-link disclosure, research protocol, conflict-of-interest policy, and our correction log. All on one page. Read before you trust the rest.
Fast Amazon Shortlist
These picks come from the current FilterCycle guide set and keep the affiliate tag attached.
- Refill base Dr. Bronner's Castile — Bulk Refill Base One 32 oz jug dilutes into months of hand soap, floor cleaner, Current price and availability open on Amazon.
- Bulk staple Arm & Hammer Baking Soda 5 lb Bulk bag for DIY cleaners, deodorizing, and laundry boosts without subscriCurrent price and availability open on Amazon.
- Plastic-free Dr. Bronner's Pure-Castile Bar Soap Concentrated bar for body, home, and laundry — one bar replaces mulCurrent price and availability open on Amazon.
- Low-waste Native Sensitive Deodorant — Cotton & Lily Aluminum-free paperboard stick — odor control without a plasticCurrent price and availability open on Amazon.
- Bar swap Ethique Heali Kiwi Shampoo Bar Solid shampoo replacing multiple liquid bottles — gentle on color-treated hair. Current price and availability open on Amazon.
- Reuse Bee's Wrap Beeswax Food Wrap 3-Pack Reusable wraps replace cling film — pays back in weeks of grocery runs. FrCurrent price and availability open on Amazon.
- Check on Amazon →Current price and availability open on Amazon.
- Check on Amazon →Current price and availability open on Amazon.
Get the checklist
Need a shorter call? Send the use case, budget, and must-have features, and we will point you to the most relevant page on filtercycle.org.
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