SKU: 6651205002

Neptune Automatic Top-Off Kit (V2)

Sale price$2557.35 Regular price$2841.50
Save 10%

Pay in installments of $710.38 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Neptune Automatic Top-Off Kit (V2)Neptune Automatic Top Off Kit (V2) Neptune Automatic Top Off Kit (V2) is used to automatically replenish evaporated water in aquariums, providing a simple and reliable solution for maintaining water levels. A Complete, Simple, & Standalone ATO! Plug & Play Operation Includes Powerful 24V DC PMUP Two Optical Sensors with No Moving Parts IQ Fill Water Run Time Intelligence Mechanical Float Valve Audible Alarms No Apex Necessary Advanced Featured

Neptune Automatic Top-Off Kit (V2)

Neptune Automatic Top-Off Kit (V2) is used to automatically replenish evaporated water in aquariums, providing a simple and reliable solution for maintaining water levels.

A Complete, Simple, & Standalone ATO!

  • Plug & Play Operation
  • Includes Powerful 24V DC PMUP  
  • Two Optical Sensors with No Moving Parts
  • IQ-Fill Water Run-Time Intelligence
  • Mechanical Float Valve
  • Audible Alarms
  • No Apex Necessary
  • Advanced Featured Unlocked When Paired With Apex Controllers

No aquarium task is more tedious than adding freshwater to replace the water that evaporates out of our aquariums each day. Because of this, it's no surprise that an auto top off system (ATO) is usually the first piece of automation equipment purchased by new hobbyists. Having an ATO is particularly useful when you're away on vacation and don't have someone to watch over your aquarium or simply want to go a few days without having to think about your tank.

The ATK Auto Top Off Kit from Neptune Systems is simple to install, works with or without an Apex Controller, and has multiple back-up safety measures to prevent overfilling.

Three Levels of Safety

Backup Optical Sensor: If the primary water level sensor fails, a backup optical sensor will stop the ATO pump and an alarm will sound.
IQ-Fill (stand-alone mode only): The ATK will not add more than double the learned water amount. If the system is running for too long, it will stop the ATO pump and an alarm will sound.
Physical Float Valve: In the rare event that the electronic failsafes do not work, a mechanical float valve will stop water from flowing into your aquarium.

PMUP v2 ATO Pump

The PMUP is a small utility pump that is perfect for moving water from your RODI reservoir to the aquarium or sump. This pump has a vertical design that easily drops into most water jugs or ATO reservoirs and can pump water over 14 feet vertically, allowing for efficient water delivery from remote or lower-floor reservoirs.

The bottom of the pump features a removable screen for easy access to the pump's impeller. This design keeps potential debris out of the pump while also allowing easy access for cleaning. 

Extra Value for Apex Owners

If you already have an Apex, setting up the ATK is still super-simple. Just plug in all the components, attach it to your Apex via the AquaBus cable, and run the set-up task in Apex Fusion. With the ATK connected to an Apex, you get the added benefit of having email and push notifications if something goes wrong and you can integrate the ATK into other functions.

The FMM module included with the ATK has four ports for sensors and probes. The two optical sensors included with the ATK only use port-1 and port-2, which means there are two free ports that can be used for additional accessories like leak detectors, flow sensors, and additional optical sensors.

What's Included?

FMM Fluid Monitoring Module
(2x) Optical Water Level Sensors
Float Valve
90° Tube Fitting
PMUPv2 ATO Pump
4 Meters Orange RO Tubing
3/8" to 1/4" Push Connect Adapter Fitting
1/4" Push Connect Siphon Break
Set Screw for Non-Float Valve Applications
24V 36W Power Supply

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 6651205002

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 20 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Diane
Omaha, US
★★★★★ 5
A timeless guide to spiritual perfection
Format: Kindle
A classic book on spiritual perfection and how to achieve it. The metaphors may be set in the past, but there is enough commonality with the present that this generation can still understand what this great Saint is communicating. He only makes one mistake: Spiritual perfection is not a possibility only for monks; lay people can achieve it as well. This is a book that all can profit from, whether one is just beginning to climb or is near the top.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 27, 2025
N
Verified Purchase
Nun Niqola Hegyal
New York, US
★★★★★ 5
An Eritrean Oriental Orthodox Tewahedo Nun's Comments
Format: Kindle
For 28 years I served (with a lowercase "s" ) alongside my Eastern Orthodox husband/Archpriest, who reposed in 2018. Now as a Tewahedo Hermitess, with access to the world rather than strict enclosure inside the monastery, little father John Climacus' book serves as a helpful reference guide to me to determine how Eastern (communion) coenobitic monks during post-Chalcedonian Schizm tried to refine and perfect the more ancient Syriac strivings of stages of spiritual perfection started first by the "Sons and Daughters of the Covenant" transformed into a "narrow path to salvation" inside tonsured communities. While we do not use little father John's book as a key "focal point" in our Oriental Churches, it is important to preserve this copy - true to its original content - like all watershed moments in Orthodox Church History, and investigate if there are living parallels of little Father John's system used by Oriental monasteries, written by their respective Hegumens, within the same relevant time period. I am guessing there are probably so, because what Christ truly teaches and inspires, He never usually leaves to one person alone. "Where 2 or 3 are gathered together in My Name, there Am I in the midst of them" is the Peace of the Apostolic covenant of Christ, among the Churches founded by His 12 Apostles - a Peace and a symmetry that still can be found despite the heartbreaking misinformation, bias, and (in some spots of the world) bitter kernels of monastically - engendered hatred towards reunification of Eastern and Oriental communities into one, whole, functional and understood Church. He who has ears, let him hear (and examine)!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2025
A
Verified Purchase
Akamai Okole
Waukegan, US
★★★★★ 5
The Essential Work Other Than the Bible for Orthodox Christians
Format: Kindle
I just finished reading The Ladder for the fourth time. I read it every Great Lent before our Sunday of St. John Climacus. It is stern and austere being written for monks, but glorious in the lessons it provides for those of us not monastics. It is a roadmap to a Christian life, challenging and aspirational, inspiring and humbling. I learn something new with each reading, and my faith deepens. But been non-Christian readers can profit from this, as it is a great meditation on a life well loved, and an excellent depiction of the essence of a dedicated Christian life.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2025
C
Verified Purchase
Cardmaniac
Phoenix, US
★★★★★ 5
Great spiritual guide
It’s a fairly confusing book if you don’t know a lot about the Orthodox Church. But for anyone with enough patience to want to learn how to grow spiritually this is perfect.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 30, 2025
E
Verified Purchase
Ethan Haddad
Natrona Heights, US
★★★★★ 4
Will lead you on the good path
Format: Paperback
I’ve barely made my way through the rungs of the ladder, but this book is definitely one of the greater books I’ve read, however I will say that people are right when they say this specific copy has a quite a few spelling errors, but I’m personally able to manage it well. I must warn you though, THIS IS NOT A LIGHT READ, if you’re looking for something simple to learn from, look elsewhere. This book isn’t an easy pill to swallow if you’re not open minded and at least somewhat familiar with the theology of the early church fathers, however if you are, I highly recommend you give this a read if you haven’t already. Once again, a fantastic read, but read at your own discretion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2022

recommand products