1. Giriş
The Culligan US-EZ-4 EZ-Change Sink Drinking Water Filtration System provides filtered water for drinking and cooking directly from a dedicated faucet. This system is designed for ease of use and maintenance, featuring a twist-on/off filter cartridge replacement mechanism.
Temel Özellikler:
- Reduces particulates (Class 1), chloride, cyst, chloroform, MTBE, mercury, lead, turbidity, perfluorinated chemicals (PFOA & PFOS), and bad taste/odor.
- 0.5 GPM akış hızı.
- Includes 1 twist-on/off filter cartridge replacement, tubing, dedicated faucet, and installation hardware.
- Filter life up to 6 months or 500 gallons, depending on usage and water conditions.
- Certified by IAPMO to NSF/ANSI Standard 42 and 53.

Figure 1: Culligan US-EZ-4 Under-Sink Filtration System components.
2. Kurulum ve Kurulum
This section provides detailed instructions for installing your Culligan US-EZ-4 filtration system. For a visual guide, please refer to the installation video below.
2.1 Gerekli Araçlar
- Ayarlanabilir anahtar
- Yıldız uçlu tornavidalar
- Drill with 1/4-inch and 1/2-inch drill bits (if drilling a new faucet hole)
- Utility knife or tube cutter
- Bucket and towel
- teflon bant
2.2 Musluk Montajı
- If your sink has a pre-drilled hole (e.g., for a soap dispenser), remove any existing fixture. If not, drill a 1/2-inch hole in a suitable location on your sink or countertop.
- Assemble the dedicated faucet by screwing the spout onto the faucet body.
- Place the rubber gasket onto the threaded faucet stem.
- Insert the faucet stem through the hole in the sink/countertop.
- From underneath the sink, slide the metal washer and then the plastic stem nut onto the faucet stem. Hand-tighten the nut to secure the faucet.
2.3 Su Besleme Bağlantısı
- Turn off the cold water supply to your main kitchen faucet.
- Disconnect the cold water line from the 1/2-inch threaded stub on the bottom of the cold water faucet inlet.
- Apply Teflon tape to the male threads of the faucet stop and the supply adapter.
- Screw the water supply adapter onto the threaded faucet stub.
- Reconnect the cold water line to the male supply adapter threads. Hand-tighten and then snug with a wrench.
2.4 Filter Head Mounting
- Choose a location under the sink to mount the filter head. Ensure there is at least 1.5 inches of clearance below the filter cartridge for future changes. The filter head should be mounted vertically on a firm surface.
- Use the mounting bracket as a template to mark screw locations.
- Drill pilot holes using a drill bit slightly smaller than the supplied screws.
- Mount the filter head using the supplied screws.
2.5 Boru Bağlantıları
- Measure and cut the plastic tubing to connect the water supply adapter to the filter inlet. Ensure enough length to prevent kinking. Cut the tubing squarely.
- Insert one end of the tubing into the supply adapter until it is fully seated.
- Insert the other end of the tubing into the filter inlet until it is fully seated.
- Measure and cut the plastic tubing to connect the filter outlet to the dedicated faucet.
- Slide the compression nut and ferrule over one end of this tubing, then insert the plastic insert into the end of the tubing.
- Push this end of the tubing firmly into the dedicated faucet stem. Hand-tighten the compression nut onto the threads until secure, then tighten approximately half a turn with a wrench.
Video 1: Culligan US-EZ-4 Under-Sink Drinking Water Filtration System Installation Guide. This video demonstrates the installation process for the system, including faucet mounting, water supply connection, and filter head setup.
3. Kullanım Talimatları
After installation, follow these steps to begin using your filtration system:
- Filtre Kartuşunu Takın: Align the arrow on the filter cartridge with the unlocked padlock symbol on the filter head. Push the cartridge up into the head and then twist the cartridge until the arrow aligns with the locked padlock symbol.
- Su Teminini Etkinleştirin: Slowly turn on the cold water supply valve. Check for any leaks around connections.
- Sifon Sistemi: Rotate the handle of the dedicated filter faucet counter-clockwise to the ON position. Allow water to run for 10 minutes to flush air and carbon fines from the system. The water may appear cloudy initially, which is normal.
- Günlük Kullanım: To dispense filtered water, simply turn the handle of the dedicated faucet to the ON position.
4. Bakım
Regular maintenance ensures optimal performance and water quality from your Culligan US-EZ-4 system.
4.1 Filtre Kartuşunun Değiştirilmesi
The RC-EZ-4 filter cartridge should be replaced every 6 months or after filtering 500 gallons of water, whichever comes first. The system features an easy twist-on/off mechanism for quick replacement.
- Su Kaynağını Kapatın: Sisteme giden soğuk su beslemesini kapatın.
- Basıncı Serbest Bırakın: Open the dedicated filter faucet to release any remaining pressure in the system.
- Eski Kartuşu Çıkarın: Place a towel or bucket under the filter head to catch any drips. Align the arrow on the cartridge with the unlocked padlock symbol on the filter head, then twist and pull down to remove the old cartridge.
- Yeni Kartuşu Takın: Align the arrow on the new RC-EZ-4 cartridge with the unlocked padlock symbol on the filter head. Push the new cartridge up into the head and then twist until the arrow aligns with the locked padlock symbol.
- Su Kaynağını Yeniden Sağlayın ve Suyu Temizleyin: Slowly turn on the cold water supply. Check for leaks. Flush the system by running water from the dedicated faucet for 10 minutes.
- Bataryayı değiştir: Replace the battery in the faucet's LED indicator.

Figure 2: Culligan RC-EZ-4 Easy-Change Replacement Filter Cartridge.
4.2 LED Filter Life Indicator
The dedicated faucet includes an LED indicator to remind you when to change the filter cartridge:
- Yeşil ışık: Filter is operating normally.
- Yellow Light (blinking): Filter needs to be changed within 30 days.
- Red Light (blinking): Filter needs to be changed immediately.
Video 2: Culligan US-EZ-4 Filter Replacement. This video demonstrates the simple twist-and-pull method for replacing the filter cartridge (relevant segment from 0:35 to 0:39).
5. Sorun Giderme
| Sorun | Olası Neden | Çözüm |
|---|---|---|
| Bağlantılarda sızıntılar | Loose connections, improper tubing insertion, missing O-rings. | Ensure all connections are tight. Verify tubing is fully inserted into quick-connect fittings. Check for damaged O-rings or missing Teflon tape. |
| Musluktan düşük su akışı | Clogged filter cartridge, kinked tubing, low incoming water pressure. | Replace the filter cartridge. Check tubing for kinks or obstructions. Verify adequate household water pressure. |
| Bad taste or odor in filtered water | Expired filter cartridge, improper flushing after installation/replacement. | Replace the filter cartridge. Flush the system for 10 minutes after installation or replacement. |
| LED göstergesi çalışmıyor | Dead battery, incorrect battery insertion. | Replace the battery in the faucet. Ensure the battery is inserted correctly. |
6. Özellikler
| Özellik | Detay |
|---|---|
| Model Numarası | US-EZ-4 |
| Filtre Türü | Karbon Blok |
| Kurulum Türü | Lavabo altında |
| Maksimum Akış Hızı | Dakikada 0.5 Galon |
| Filtre Kapasitesi | 500 Galon |
| Filtre Ömrü | 6 aya kadar |
| Ürün Boyutları | 14.25"U x 9.25"G x 8.4"Y |
| Ürün Ağırlığı | 4.09 pound |
| Üst Sıcaklık Derecesi | 100 Derece Fahrenheit |
| Dahil Bileşenler | System with Filter, Dedicated Faucet, Tubing, Installation Hardware |
| Güç Kaynağı | Manuel İşlem |
| Özel Özellik | Reduce TDS |

Figure 3: Culligan US-EZ-4 Filter Dimensions.

Figure 4: Culligan Drinking Water Cartridge Selection Guide.
7. Garanti ve Destek
7.1 Ürün Garantisi
The Culligan US-EZ-4 Under-Sink Drinking Water Filtration System comes with a 2 Yıllık Sınırlı GarantiLütfen ürününüzle birlikte verilen garanti belgelerine bakarak tüm şart ve koşulları inceleyin.
7.2 İade Politikası
Bu ürün indirimden yararlanmaya uygundur. 30 günlük iade/değişim politikası when purchased from Amazon.
7.3 Müşteri Desteği
For technical assistance, replacement parts, or warranty claims, please contact Culligan customer support. Contact information can typically be found on the product packaging or the official Culligan webalan.





