Crystal Quest Authorized dealer

SKU: CQE-RO-00116

Thunder Ultrafiltration/Reverse Osmosis Under Sink Water Filter | 4000MP | 17 Stages of Filtration

In stock
Regular price $740.61

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  • Seventeen-Stage Filtration
  • Targeted Reduction
  • Micron Rating
  • Ships With Install Hardware
  • Installation Manual Included

Ships direct from the manufacturer · Shipping calculated at checkout Details

Returns within 30 days of delivery · 30% restocking fee Details

Questions? Talk to a water specialist

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Total price: $740.61

Overview

The Crystal Quest Thunder 4000MP is a 17-stage under-sink reverse osmosis system that combines carbon filtration, ultrafiltration membranes, a reverse osmosis membrane, ion exchange resin, Eagle Redox Alloy media and a UV stage. Crystal Quest rates it at 50 gallons per day and includes a designer faucet and a stainless steel holding tank.

17 stages of filtration including carbon filtration, ultrafiltration membranes, reverse osmosis, ion exchange resin, Eagle Redox Alloy media, and UV sterilization. Produces 50 gallons per day. Includes installation hardware, stainless steel holding tank, and designer faucet.

Specifications & Details

System type under-sink
Flow rate 50GPD
Micron rating 5 micron; 0.020 micron; 1 micron; 0.20 micron
Stages 17
Dimensions Unit - 16"L x 8"W x 27"H
Shipping weight 30.0lb

Filter media

  • activated carbon
  • carbon block
  • GAC
  • ceramic
  • sediment
  • polypropylene
  • reverse osmosis
  • RO membrane
  • ultrafiltration
  • ion exchange
  • coconut shell carbon
  • alkaline
  • resin

a complete installation kit that includes a European lead-free long-reach designer faucet; CRYSTAL QUEST® 3.2 gallons stainless steel pressurized holding tank with a polypropylene inner liner and a 2.0 gallon capacity; all interconnecting color-coded tubing; filter cartridges; Ultrafiltration membrane; RO membrane; wrenches; installation hardware

Replacement filter
CQE-RC-04000

Questions about this product

Crystal Quest rates it at 50 gallons per day. Treated water is stored in the included 3.2-gallon stainless steel pressurized tank and dispensed from its own faucet.

The complete installation kit includes a lead-free long-reach designer faucet and the 3.2-gallon stainless steel holding tank, along with the filter housings and cartridges.

Its targets include VOCs, THMs, lead, arsenic, fluoride, chromium, mercury, cadmium, chlorine and other heavy metals. Each stage and its cartridge are listed in the specifications.

The listed replacement part is the Coconut Based 5-Micron Carbon Block Filter Cartridge (CQE-RC-04000). The replacement schedule for each stage is in Crystal Quest's manual linked on this page.

Key Features

  • Seventeen-Stage Filtration

    This system is listed at 17 stages, so the water is treated in sequence rather than by a single cartridge.

  • Targeted Reduction

    The listed contaminant targets for this system include VOCs, THMs, lead, arsenic and fluoride; the full list is in the specifications.

  • Micron Rating

    This system is rated at 5 micron; 0.020 micron; 1 micron; 0.20 micron, which is the size of particle its particulate stage is designed to trap.

  • Ships With Install Hardware

    The faucet and the installation hardware are supplied with the system.

  • Installation Manual Included

    The installation and operation manual for this model is linked further down this page.

What This Removes

Reduces

  • VOCs
  • THMs
  • lead
  • arsenic
  • fluoride
  • chromium
  • mercury
  • cadmium
  • nickel
  • copper
  • aluminum
  • heavy metals
  • chlorine
  • iron
  • hydrogen sulfide
  • cysts
  • pyrogens
  • colloids
  • inorganic contaminants
  • dissolved solids
  • minerals
  • scale / hardness
  • sediment
  • pesticides
  • insecticides
  • herbicides
  • industrial solvents

Lead-free materials.

Shipping, Warranty & Returns

Shipping is calculated at checkout by weight.

Orders ship direct from the manufacturer. We submit your order within 2 business days and email tracking as soon as it ships.

Estimated transit once shipped: 1–5 business days.

Alaska, Hawaii and Puerto Rico: ask us for a shipping quote.

Checkout offers this item to the contiguous 48 states and DC. For Alaska, Hawaii or Puerto Rico, use the shipping quote form or call 908-787-6030 and we reply by email with the delivered price. Nothing is charged until you accept.

Shipping details

1-year manufacturer warranty. We handle the claim for you from start to finish. Crystal Quest warranty terms

Crystal Quest One Year Limited Warranty: systems are warranted for one year from date of purchase against defects in materials and workmanship (replacement filters and media excluded). Full terms: /pages/crystal-quest-warranty

Start a warranty claim

Contact us for a Return Authorization (RMA) before sending anything back. We can't accept returns without one.

  • Start your return within 30 days of delivery. Approved returns carry a 30% restocking fee. Reverse osmosis systems, filter cartridges, membranes and media can't be returned.
  • Items must be unopened, unused and resellable, with all original packaging and components. You pay return shipping.
  • Systems, filters, cartridges and membranes can't be returned once water has run through them or they have been installed. Hygienic products can't be returned once opened.
  • Damaged or defective on arrival? Contact us within 48 hours with photos and we arrange the return.

Return terms for Crystal Quest

Documents & Manuals