The Sicce Syncra Silent is a whisper-quiet, energy-efficient multifunction pump that runs fully submerged or inline (external), making it one of the most versatile workhorses in the hobby. Use it as an aquarium return pump, to feed a protein skimmer or reactor, or for closed loops, fountains, and water features. The range spans the compact Nano up to the powerful 5.0, so you can match flow to almost any freshwater or saltwater system. Part of our pumps and circulation range.Features Silent operation and low power draw, with minimal heat transfer to your water. Multifunction: runs fully submersible or inline / external. Sicce Sync technology for reliable wet or dry starting and a long service life. 316 stainless steel shaft (ceramic shaft optional) for durability. Freshwater and saltwater safe, made in Italy. Choose Your Model Model Max Flow Max Head Price Nano 110 GPH — $34.99 0.5 185 GPH 4 ft $54.99 1.0 251 GPH 5 ft $69.99 1.5 357 GPH 6 ft $89.99 2.0 568 GPH 6.5 ft $119.99 3.0 714 GPH 9.9 ft $149.99 3.5 HP 687 GPH 12.5 ft $159.99 4.0 951 GPH 12.5 ft $189.99 5.0 1321 GPH 12.6 ft $229.99 The 3.5 is a high-pressure model that trades a little flow for extra head height. Select your model above.Which Model Do I Need?Pick a pump rated well above your target turnover once you account for head height (vertical lift) and plumbing. For a sump return, measure the height from the pump to the tank and choose a model whose max head comfortably exceeds it. Nano and 0.5 suit nano tanks and small features; 1.0 to 2.0 fit most small to mid freshwater and reef systems; 3.0 to 5.0 drive larger tanks, tall returns, and high-flow applications.Specifications Brand Sicce Line Syncra Silent Type AC multifunction pump (submersible or inline) Uses Return, skimmer / reactor feed, closed loop, fountains, water features Water type Freshwater and saltwater Shaft 316 stainless steel (optional ceramic) Origin Made in Italy Frequently Asked QuestionsCan it run outside the tank?Yes. The Syncra Silent is a multifunction pump that runs submerged or inline / external.Is it for fresh or saltwater?Both.How do I choose a size?Match the max flow and max head to your system and plumbing height, choosing a model rated above your target turnover after head loss.