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Neptune Systems ATK 2 — Auto Top-Off Kit
Sourcing begins the day you order. This is an import lead-time, not a shipping delay — the date shown above is the exact value echoed in your cart, checkout, and order-confirmation email.
See the returns & care policy Honest availability — sourced-to-order, not held stock.
Availability
Not held stock
This is a sourced-to-order model — we do not warehouse this product. Your order triggers sourcing on the date placed.
Single source of truth
The lead-time shown above is the exact value echoed in your cart, checkout, and confirmation email — never re-entered, never contradicted.
No default WooCommerce stock strings
"18 in stock" / "on backorder" style copy never appears — replaced entirely by the lead-time module above.
About this product
An auto top-off system senses evaporated water and pumps replacement freshwater back in automatically, holding salinity/level stable without a daily top-off chore. Standalone-capable but built for Apex-ecosystem integration.
Built for reef and marine tank keepers where salinity swings from evaporation are a real stability risk, and for any keeper who travels and needs the tank to hold steady unattended.
In the box: the pump unit, the level sensor and its mounting clip, and the power adapter — connect your own top-off reservoir.
We source this to order from our supplier network — sourced to order, ships in 30 days — so it arrives to spec, not off a dusty shelf.
Specifications
| Field | Value |
|---|---|
| Type | Auto top-off (ATO) system |
| Reservoir | Designed to pair with Apex controllers for logged/alerted top-off |
| What's in the box | Pump unit, level sensor, mounting clip, power adapter |
| Country of origin | China |
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