• iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter, Alkaline Remineralization Filters for 6-Stage RO Systems,
  • iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter, Alkaline Remineralization Filters for 6-Stage RO Systems,
  • iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter, Alkaline Remineralization Filters for 6-Stage RO Systems,
  • iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter, Alkaline Remineralization Filters for 6-Stage RO Systems,
  • iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter, Alkaline Remineralization Filters for 6-Stage RO Systems,
  • iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter, Alkaline Remineralization Filters for 6-Stage RO Systems,
1 6

iSpring

iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter, Alkaline Remineralization Filters for 6-Stage RO Systems, Without RO Membrane

iSpring F9K NSF Certified 1-Year Reverse Osmosis Water Filter, Alkaline Remineralization Filters for 6-Stage RO Systems, Without RO Membrane

$100.07 USD
$100.07 USD
Shipping calculated at checkout.

Transform your home café with NSF-certified purity. The iSpring F9K replacement filter pack delivers mineral-balanced, crystal-clear water for espresso, baking, and everyday cooking—restoring both clarity and the natural minerals that elevate every creation.

☕ At a Glance

Type
6-Stage RO Filter Pack
Lifespan
1 Year
Materials
Polypropylene, GAC, Carbon Block
Cartridge Size
10" x 2.5" Standard
Certification
NSF & ANSI Certified
Pack Contents
9 Replacement Filters

✨ Comprehensive Multi-Stage Filtration

This nine-filter replacement set includes sediment pre-filters, granular activated carbon, carbon block cartridges, post-carbon polishing, and alkaline remineralization filters. Together, they remove contaminants while restoring beneficial minerals that enhance water's natural taste and pH balance. NSF and ANSI certification confirms removal of chlorine, sediment, and other common impurities—delivering restaurant-quality water for your home café.

🥤 Perfect For

☕
Home Baristas
Perfect espresso extraction
🧁
Bakers
Pure water for dough & batters
🍵
Tea & Coffee Lovers
Fresher, brighter brewed flavor
🍳
Home Cooks
Superior soups, stocks & meals

✨ Key Features

💧 Alkaline Remineralization ✓ NSF & ANSI Certified 🔄 Multi-Stage Filtration 🎯 1-Year Filter Pack 🌍 Reduces Plastic Waste

🧼 Care & Installation

Replace filters annually or more frequently depending on your water quality and usage volume. Each cartridge arrives individually wrapped to maintain freshness and purity. Installation is straightforward into standard iSpring 6-stage under-sink housings—simply follow your system's quick-change guidelines. No tools or special knowledge required; replacement takes just minutes.

— Why We Selected This —

The iSpring F9K stands out for its commitment to both purity and mineral balance. NSF certification ensures rigorous contaminant removal, while the alkaline remineralization stage restores calcium and magnesium—minerals that enhance water taste and your body's natural hydration. Perfect for SERA customers who view water as an essential ingredient in their culinary and café craft.

↩️
30-Day Returns
Unused items, 30 days. Damaged, wrong, or lost made right.
🔒
Secure Checkout
Encrypted payment, trusted by Shopify.
📦
Tracked Shipping
Every order ships with tracking.
Why Home Cooks Choose SERA
✓ Hand-Curated
Every tool & ingredient is selected for quality — not mass-listed.
✓ Café & Kitchen Guidance
Clear how-to notes so you get great results at home.
✓ Real Support
Questions? Our team replies within 24–48 hours.
📬 Shipping & Delivery: Your order ships with tracking and a confirmation email. Delivery times vary by destination. Easy 30-day returns on unused items — plus damaged, wrong, or lost orders made right.
View full details

Blog posts

View all
  • Matte stainless-steel vacuum-insulated food jar and flat leakproof bento box on a linen tablecloth with a wooden serving board — café-style picnic lunch box setup

    Best Picnic Lunch Box for Café-Style Meals: 202...

    A practical buying guide to the best picnic lunch boxes for café-style outdoor meals — comparing vacuum-insulated food jars, leakproof bento boxes, stackable tiffins, and glass containers by temperature retention,...

    Best Picnic Lunch Box for Café-Style Meals: 202...

    A practical buying guide to the best picnic lunch boxes for café-style outdoor meals — comparing vacuum-insulated food jars, leakproof bento boxes, stackable tiffins, and glass containers by temperature retention,...

  • Summer brunch spread with fresh peaches and berries on a cream stoneware platter, ruby hibiscus tea and cold brew in glass carafes, and golden scones in a linen basket on a light wood table

    Best Summer Brunch Spread Ideas for a Café-Wort...

    Build a beautiful summer brunch spread with a hibiscus cold-brew tea station, fresh seasonal fruit board, warm baked goods, and cohesive stoneware serveware — complete recipes, prep timings, and table-setting...

    Best Summer Brunch Spread Ideas for a Café-Wort...

    Build a beautiful summer brunch spread with a hibiscus cold-brew tea station, fresh seasonal fruit board, warm baked goods, and cohesive stoneware serveware — complete recipes, prep timings, and table-setting...

  • Two firm ice cream scoops in a white stoneware bowl beside a stainless steel ice cream scoop on a linen tablecloth

    Ice Cream Melting Too Fast? 5 Quick Fixes That ...

    Ice cream melting too fast? Freeze your bowl for 10 minutes, dip your scoop in hot water for 3–4 seconds, and temper the sealed carton 3–5 minutes before serving —...

    Ice Cream Melting Too Fast? 5 Quick Fixes That ...

    Ice cream melting too fast? Freeze your bowl for 10 minutes, dip your scoop in hot water for 3–4 seconds, and temper the sealed carton 3–5 minutes before serving —...

1 3
View all