# IMS E61200NT Nanotech Membrane Shower Screen (E61 group) > Espresso compatibility data from EspressoFit. Confidence: **manufacturer (Tier 1 — manufacturer primary source read firsthand)**. > Sources last read firsthand: 2026-08-21. > Canonical page: https://espressofit.com/parts/ims-e61200nt-shower-screen/ ## Specifications - **Part type:** Shower screen - **Fits group:** E61 group - **Brand:** IMS ## Fits these machines - ECM Estetika (58mm portafilter) — https://espressofit.com/machines/ecm-estetika/ - ECM Mechanika MAX II (58mm portafilter) — https://espressofit.com/machines/ecm-mechanika-max-ii/ - Rocket Espresso Appartamento (58mm portafilter) — https://espressofit.com/machines/rocket-appartamento/ - Rocket Espresso Giotto Fast (58mm portafilter) — https://espressofit.com/machines/rocket-giotto/ - Rocket Espresso Mozzafiato Fast (58mm portafilter) — https://espressofit.com/machines/rocket-mozzafiato/ - Rocket Espresso Porta Via (58mm portafilter) — https://espressofit.com/machines/rocket-porta-via/ ## Notes The Nanoquartz-coated E61 shower screen — **Ø60mm border**, 57mm body, 17mm external wall, 200 µm photo-etched membrane. Same fitment as the uncoated [E61200IM](/parts/ims-e61200im-shower-screen/); the difference is entirely the surface. ## The E61 is the group this coating was made for IMS makes the argument better than we could, on its ECM page: > "The E61 group head is an exposed, heavy brass component that gets very hot. > Coffee oils can quickly bake onto the standard shower screen. The Nanotech (NT) > quartz coating provides a non-stick barrier that prevents oils and grounds from > adhering to the metal." That is the whole case. An E61 is a thermosyphon — brass held permanently at brew temperature by circulating water — so unlike a machine that cools down between sessions, the screen is never not hot. Baked-on oils are the characteristic E61 maintenance problem, and a hydrorepellent surface attacks it at the cause rather than asking you to scrub harder. The trade is that the coating is a consumable in a way bare steel is not. IMS warns on its brand pages against daily aggressive chemical backflushing, which wears the quartz down; water backflushing and a wipe are the intended routine. ## A dimension worth noting IMS prints the body diameter as **57mm** on this page and **56.5mm** on the uncoated E61200IM page. Both figures are quoted here exactly as published rather than reconciled into one — the border diameter, which is what actually seats in the group, is 60mm on both. ## Which machines are cross-referenced, and why not more The same list as the uncoated version, and for the same reason: only machines whose **own** manufacturer page confirms an E61 group — four Rocket models and two ECM models. IMS's E61 brand list also names **Lelit**, but not which Lelit models, and Lelit's own pages describe its home groups as LELIT58, L58E and LELIT57 rather than E61. Rather than guess, no Lelit machine is cross-referenced. Rocket's saturated-group models are excluded on the same principle. IMS's caveat is worth reading before you buy: "The most common products of each manufacturer are compatible as indicated, but there may be models that use different components which may not always fit some models of home espresso machines." This is a **group part** — keyed by grouphead, not portafilter size. See [groupheads explained](/guides/groupheads/) and [the E61 group](/guides/e61-group/). ## Sources - https://www.imsfiltri.com/shower-screen/E61200NT.html - Official IMS Filtri product page ('E61200NT SHOWER SCREEN', Competition Line, Nanotech Membrane), read firsthand 2026-08-21. States verbatim: 'This model is designed specifically for E61 group heads and enhanced with our advanced Nanoquartz coating.' Specs verbatim: 'SKU: E61200NT', 'Body Diameter: 57 mm', 'Border Diameter: 60 mm', 'Wall Height: 17 mm (external)', 'Passage / Filtration: 200 µm'. Construction verbatim: 'made of a single filtering part in stainless steel obtained through a process of photo-etching: special micro perforations are made inside the thickness of the shower to obtain a filtering power of 200 μm.' Note the body diameter is printed as 57 mm here where the uncoated E61200IM page prints 56.5 mm; both are quoted as published rather than reconciled. - https://www.imsfiltri.com/ecm-espresso-precision-filters-showers.html - Official IMS ECM compatibility page, read firsthand 2026-08-21, which states the case for the coated version on an E61 machine verbatim: 'The E61 group head is an exposed, heavy brass component that gets very hot. Coffee oils can quickly bake onto the standard shower screen. The Nanotech (NT) quartz coating provides a non-stick barrier that prevents oils and grounds from adhering to the metal, making daily cleaning significantly faster and keeping your espresso tasting fresh.' - https://www.imsfiltri.com/shower-guide.html - Official IMS Shower Code Guide, read firsthand 2026-08-10 — the brand-to-prefix mapping that connects the E61 screen to machine brands, which IMS's shower product pages do not themselves carry. States verbatim that showers 'are classified according to compatibility with the brewing group', and lists for the E61 prefix: 'Faema, SANREMO, Kees van der Westen, Wega, VBM, Expobar, Bezzera, BFC, Bianchi, Brasilia, D.I.D. L'Orchestrale, ECM, Fiorenzato, Grimac, Iberital, La Nuova Era, La Scala, Quality Espresso, Rocket, Royal First, SV - SAB, VFA, Bellezza, Lelit.' Also carries IMS's caveat verbatim: 'The most common products of each manufacturer are compatible as indicated, but there may be models that use different components which may not always fit some models of home espresso machines.' --- Compatibility reference, not a substitute for your machine's manual. Every claim above cites the source it came from; see https://espressofit.com/methodology/ for how entries are verified. Corrections: corrections@espressofit.com.