The Fit Guarantee, in plain English.

Effective May 12, 2026 · 5 min read

1. The Fit Guarantee

This is the promise we'll be judged by. If you ran the Fit Check tool (or emailed us a photo of your existing filter) and ordered the nominal size we recommended, and the filter does not seat securely in a standard residential return slot without modification, you have two options:

• Replacement. We'll ship the corrected nominal size at no charge. The original filters are yours to keep — don't bother boxing them up to return.
• Refund. Full refund of the affected pack to your original payment method, processed within 3 business days of photo verification.

You have 30 days from the delivery date on the tracking record to file. No restocking fee. No return shipping. We don't make you pay to return a problem we caused.

2. Damaged on Arrival

Industry baseline for "filter arrived crushed" is roughly 3–6% of shipments. Our verified rate is under 0.4% — but it's not zero, and when it happens to you, the percentage doesn't matter.

If your package arrives with visible shipping damage — crushed corners, bent frame on a filter, torn-open carton — email us within 7 days of delivery with one photo of the outer box and one photo of the affected filter(s). We'll ship a free replacement of the damaged pack the next business day.

You do not need to return the damaged unit. You do not need a return label. We don't ask buyers to absorb the cost of a logistics failure.

3. How to claim — three minutes, three steps

1. Email support@apexpuri.com with subject "Fit claim" or "Damaged on arrival" and include your order number.
2. Attach 1–2 photos. For fit claims: a photo of the filter in your slot showing the issue. For damage claims: a photo of the outer box plus a photo of the affected filter.
3. We reply within 1 business day (U.S. business hours). Most claims are resolved in a single email round-trip — replacement filter ships within 1–2 business days of approval.

4. Subscribe & Save changes

Subscribe & Save is opt-in, and every part of it is opt-out from one email link:

• Skip a shipment. One click in any shipment email. Pushes the next shipment out by your current cadence interval.
• Change cadence. Move between 30 / 60 / 90 / 120 days from your account page. Takes effect on the next shipment.
• Cancel entirely. One click. No "call to cancel" wall. No retention pop-up except a one-line "are you sure?" confirm.

If a subscription shipment arrives and you no longer want it, contact us within 14 days for a refund — we'll generally process it without requiring you to ship the filters back.

5. What's not covered (the boring part)

• Filters used past 30 days from delivery — the cardboard frame typically loads with dust and we can't verify original condition.
• Filters cut, trimmed, foam-taped, or otherwise modified — modification voids the structural guarantee.
• Filters in non-standard 4-inch cabinets that we flagged for manual review before shipping but the buyer chose to proceed without sending requested photos.
• Damage caused after delivery (drops, water damage, animal damage).
• Refunds requested outside the 30-day window without prior contact.

None of this is a gotcha. We just need you to play fair so we can keep playing fair too.

6. Why this policy is short

Most filter brands' return pages are 2,000 words of conditions. We can be shorter because we already shouldered the work upstream: we publish actual dimensions, we audit pack quality, we engineered the shipping box. So the back-end policy only needs to cover the cases where something still went wrong despite all of that.

If you have a situation that doesn't fit any of the categories above, email us. We will not hide behind policy language.

→ Run Fit Check before you order